VOOPOO DRAG M100S Review Featured Image C

Voopoo Drag M100S Kit Review with UForce-L Tank Included | A Rare Thing of Beauty!

Richard WinterMods 1 Comment

Sit back, relax with your favorite vape (hopefully it’s a Voopoo) and prepare to be stunned with the latest offering from Voopoo. Today we’re reviewing the newly released Drag M100S Kit which includes the UForce-L tank, and it REALLY is a thing of beauty!

Voopoo continue to excel as one of the top vape manufacturers in the industry, releasing an array of vape devices to suit everyone’s needs both in terms of performance and budget. We’ve reviewed many pods and mods from Voopoo over the last few years, including their ever growing range of “Drag” kits. If past reviews are anything to go by we should be in for something special.

Voopoo Drag M100S Vs Voopoo Drag 4
Drag M100S / Drag 4

The Drag M100S kit is the latest release in the “Drag” series of devices and follows in the same vein as the brilliant Drag 4 which we reviewed a little while ago. It still uses the Gene 2 chipset so the functionality and user interface are the same but now, unlike the Drag 4, it’s a single 18650/20700/21700 battery powered device.

We are very pleased to see that the Drag M100S kit includes the excellent UForce-L top airflow tank, which we tested during our Drag 4 and Argus MT/XT reviews. I may be a little biased as I still love using the Drag 4 and Argus MT in my daily rotation of mods, but the minute I opened the Drag M100S kit I was hooked and knew that I wouldn’t be able to put this one down.

The aesthetics, size and quality feel of the Drag M100S kit are outstanding. I also predict the performance will be great from my time using the UForce-L tank with the Drag 4/Argus MT. It’s not often that my excitement and enthusiasm gets the better of me when reviewing and using a new device, but this is one of those rare exceptions.

Overview of the Drag M100S Kit

Front View of the Voopoo Drag M100S  Mod

The Drag M100S has a maximum output power of 100W, is a multifunction tubular style mod powered by a single external 18650/20700/21700 battery and boasts an OLED selectable color change display screen.

A 2A Type-C USB charging port is located on the front panel below the + and – control buttons and round toggle switch, with the larger fire button positioned towards the top of the mod just above the display. The round toggle switch directly above the USB port is configurable to lock/unlock the device, lock/unlock the control buttons or turn the device on/off.

Bottom View of the Drag M100S Battery Door

The single battery compartment is accessed on the bottom of the Drag M100S via a hinged sliding lock latch. When opened it accepts a single 18650 battery (using the included 18650 battery adaptor) and provides 80W max power. Alternatively, you can insert a single 20700/21700 battery for 100W max power.

Control of the Drag M100S mod is carried out by the renowned GENE.TT 2.0 chip, providing accurate power levels, ultra-fast firing speeds and the usual host of safety features. Its full feature operating modes include Smart (auto coil detect) RBA (variable wattage), Temperature Control with 4 pre-set wire types and an Eco Mode.

UForce-L Tank with the two included PnP TW coils

Included in the Drag M100S kit is the top airflow UForce-L tank with an e-liquid capacity of 2ml (TPD version) or 5.5ml (standard version). It’s a quarter turn lift off top fill cap with fully adjustable triple slot top located airflow control. Its mouthpiece is a removable 810 wide bore drip tip that fixes into the top cap. It also incorporates an integrated heat sink cut into the bottom section of the tank.

One huge advantage of this tank is the vast amount of different Voopoo PnP push fit coils it can accommodate. This makes the UForce-L tank readily available to cater for all vaping styles. It comes supplied with the PnP TW15 (0.15ohm) and TW20 (0.2 ohm) coils for DTL vaping or alternatively you can purchase several MTL coils and even an RBA coil for building your own coils.

Front Side View Of The Drag M100S Kit

Straight out of the box the Drag M100S with the UForce-L tank looks really impressive. The Silver/Black version we received to review is one of the best looking mods I’ve seen for a long time. The overall surface finish is truly exquisite; achieved from an 8000 Celsius hot forging process with 8 different “Nanometer Scale” polishing stages to produce the final end result.

There are a total of six different available colors; Silver/Black, Red/Black, Cyan/Blue and Pearl White which complete the matte series and two wood finishes; Black/Dark wood and Antique Brass/Padauk.

I’d like to thank Whitney at Voopoo for sending me the Drag M100S kit to review. As always this review is completely unbiased and is my honest opinion based on my findings while using and reviewing the product. If you click on any of the buy buttons, we may receive a small affiliate commission but at no extra cost to you. This helps us to keep the site running.

Voopoo Drag M100S Kit Review


Features and Specifications

Drag M100S 100W Mod

  • Dimensions: 90mm (H) x 30mm (W) x 36mm (D)
  • Weight: 139 grams (excluding the battery)
  • Construction: Zinc Alloy + Wood (Dark Wood/Padauk)
  • Charging: Type-C USB (5V/2A)
  • Output Wattage: 5W – 100W
  • Temperature: 100-315C/200-600F
  • Output Voltage: 3.2V – 8.0V
  • Resistance Range: 0.05 ohm – 3 ohm
  • Battery Specification: External Single 18650/21700 (not included)
  • Display: 1.25inch OLED 6 Color Change Screen
  • Firing Mechanism: Button Fire Activated
  • Output Modes: Variable Wattage (RBA)/Smart/TC SS316/SS430/Ni200/Ti
  • Chip Set: GENE.TT 2.0 Chip
  • Front Fitted Multi Lock Switch (QS)

UForce-L Tank

  • Dimensions: 25.5mm (D) x 58mm (H) See Note 1
  • Weight: 86 grams (excluding coil)
  • Construction: Stainless Steel + Pyrex Glass
  • E-liquid Capacity: 5.5ml (Standard), 2ml (TPD)
  • Filling Method: Quarter Turn Top Fill
  • Coil Type: All PnP Coil Series – TW15/TW20 Included
  • Airflow: Fully Adjustable Top 3 Airflow Slots
  • Drip Tip: 810 Wide Bore
  • Thread: 510
  • Heaksink Base
2ml UForce-L Tank Vs 5.5ml UForce-L Tank
2ml UForce-L Tank Vs 5.5ml UForce-L Tank

Note 1: The standard 5.5ml UForce-L tank height is 58mm. The 2ml TPD variant is shorter and measures 53mm in height. I did at first think it was just the bubble glass that increased the e-liquid capacity but comparing the two versions side by side you can see the chimney section is also different.

The combined height of the Drag M100S and 5.5ml UForce-L tank is 150.5mm. With the 2ml UForce-L tank fitted, the combined height is 145.5mm. The combined weight of the mod and 2ml tank, including coil is 230 grams.

What’s in the Box?

Voopoo Drag M100S Kit Whats In The Box
  • Voopoo Drag M100S 100W Mod
  • Voopoo UForce-L Tank (2ml)
  • PnP TW15 Mesh Coil (0.15 ohm)
  • PnP TW20 Mesh Coil (0.2 ohm)
  • Spare Glass – 2ml Straight Glass
  • Spare Silicone O-Rings
  • 18650 Battery Adaptor
  • Type-C USB Cable
  • User Manual
  • Battery Warning Card
Spares Pack in the Drag M100S Including 2 Coils, Spare O-Rings, Spare 2ml Glass, Charging Cable and User Manual.

We received the TPD version which includes the smaller UForce-L tank. It comes with a comprehensive set of spares including 2 different coil types, spare silicone O-rings and a spare 2ml tank glass. While the spare glass is always a nice addition, it’s a shame it wasn’t the larger sized bubble glass.

Bottom of Drag M100S Box Showing Perforated Tear Strip

The packaging box is slightly different in that the outer cardboard sleeve has a dual serrated tear off strip on the bottom of the box sleeve. Removing this strip opens the bottom of the box giving access to the inner box that contains the included contents.

Front view of the Voopoo Drag M100S kit Box
Reverse view of the Voopoo Drag M100S Kit Box

This slide off outer sleeve has “Voopoo” and “Drag M100S” embossed on the front in large letters with a smaller “Gene TT Chip Inside” printed below the product name. A transparent window to the right hand side of the packaging shows the included Drag M100S in the color you’ve chosen.

The reverse side of the sleeve includes the package contents, an authentication sticker, the manufacturer’s details, the relevant safety warnings and a bar code sticker with the color of the included device.

Voopoo Drag M100S Box opened

Once the outer sleeve is removed, the Drag M100S, the UForce-L tank and spare 2ml tank glass are housed in a plastic insert tray. The TW15 and TW20 coils are in sealed sachets with the user manual, spare O-rings and charging cable contained in a cardboard box that sits beside the plastic insert tray.

The packaging box dimensions measure 132mm x 122mm x 52mm.

Voopoo Drag M100S Kit Design and Appearance

Drag M100S Mod

Voopoo Drag M100S mod View 1
Voopoo Drag M100S mod View 2

The dimensions of the Drag M100S mod are 36mm (depth) x 30mm (width) x 90mm (height) and it weighs in at a hefty 139 grams (205 grams with a 21700 battery). It’s a very solid and robust device and has the appearance of a tubular style shape with a flattened front face. It’s on this front face that the display and control buttons are placed. It also has the most wonderful surface finish I’ve seen in a long time.

Voopoo Drag M100S mod View 3
Voopoo Drag M100S mod View 4

It’s a multi-function mod capable of 5W-100W with operating modes of Variable Wattage (RBA mode), Smart Coil Detection, Temperature Control (TC) modes with 4 selectable options of SS316, SS430, Ni200 and Titanium (Ti) and an ECO mode.

Base of Drag M100S showing battery door closed with sliding lock button
Base of Drag M100S showing battery door open

A single external 18650 battery can be used with the included battery adaptor or a 20700/21700 battery..

Drag M100S with the 18650 Battery Adaptor
Drag M100S with 18650 battery adaptor and the 3 different sized batteries

The battery is fitted in the base of the Drag M100S via the hinged sliding lock latch compartment. Opening the latch plate is done by sliding the central button in the direction of the small arrow that’s printed above/below the flat edge of the button. Once the battery latch is opened, the battery is then inserted positive (+) end first into the battery compartment.

Close Up view of the opened battery door on the Drag M100S showing the minus gold plated terminal

On the inside of the lock latch plate on the central gold plated battery terminal is a “-“ (negative) symbol which again donates that the negative side of the battery aligns with the hinged latch plate. The “CE” marking and “Do Not Dispose” symbol are etched into the black outer frame on the inside of the latch plate.

Front panel of the Drag M100S showing the USB charging port

Charging the battery in the mod can be carried out using the supplied charging cable plugged into the Type-C USB port on the lower part of the front panel, just below the QS toggle switch. This USB port is specified as 5V/2A so will charge the battery reasonably quick.

I do always recommend using an external battery charger as you have control of the charging currents and can see the real time status of the battery. I will try the on-board charging circuit and report what happens in the How Do I Charge The Drag M100S section later on in this review.

The Drag M100S mod is constructed out of zinc-alloy and the overall surface finish is stunning. We mentioned in the Overview the process the Drag M100S goes through to achieve this color graded finish and the result really is spectacular. The two rounded side panels are machined and polished and cut into 4 different shaded sections. What is even more fascinating is how they reflect light and change the color shade depending on the angle the mod is held at. Hopefully the photos we’ve taken show the device off in all its glory.

Voopoo Drag M100S kit Color Range

There are a total of six color options in the Drag M100S range, these being 4 semi-matte color surface finishes; Silver/Black, Red/Black, Cyan/Blue and Pearl White. Two further wood effect finishes are also available; one with a Black frame and Dark wood surround and an Antique Brass frame with Padauk wood surround.

Drag M100S branding on the mod
Voopoo branding on the Drag M100S mod

Branding on the Drag M100S is tastefully done and very discrete with the wording “VOOPOO”, “Drag M100S” and “Gene TT” screen printed around the device body. At the top of the Drag M100S mod is the circular spring loaded gold plated 510 threaded center pin and plate with the words “DRAG” and “Spark Your Life” etched around the top surface of the plate.

Drag M100S 510 Base Plate
Grag M100S 510 Base plate showing the 510 pin and slightly raised center stud

This 510 plate sits flush against the top of the mod but the threaded 510 center pin stud has two very small and very slightly raised tags which locate within the 510 plate to hold it securely and give just that little bit of clearance when the tank is fitted to stop the tank from scratching the mod surface.

The base of the Drag M100S is flat and includes the branding “designed by Voopoo”. The spring loaded lock/latch battery opening switch is recessed enabling the Drag M100S to stand upright.

Front view of the Drag M100S showing fire button, +/- buttons, OLED display, QS toggle button and Type-C charging port

On the front of the Drag M100S are all the control buttons; fire button, + and – buttons, QS lock/unlock switch, Type-C USB charging port and the OLED display. The display, although not specified, measures 1.25 inches and is multi-colored. Changing the screen colors is done by selecting the “Colour” option in the menu settings to switch between the 5 different color options:

  • Classic
  • Green
  • Pink
  • Purple
  • Yellow

An 11.3mm circular chrome fire button with a convex surface sits just above the OLED display and two smaller 5.5mm + and – control buttons in the same style and finish are positioned just below the display. Below these two control buttons is a third slider button that has a multifunction operation and is configurable from the “Switch” menu to operate under the following conditions:

  • Device Lock/Unlock
  • Power Lock On/Off
  • + / – control button adjustment Lock/Unlock (W)
QS button in the left position (unlocked)
QS button in the right position (locked)

Depending on what action you’ve selected, locking or unlocking is carried out by moving the slider to the left or right position. Right will activate the selection i.e. lock and left will unlock. When the switch is moved, the screen will display the lock/unlock symbol and the main display will also show a locked red padlock symbol to let you know that operation is locked. A small red line in the QS base plate when it’s positioned to the left gives a visual indication that the switch is in the unlocked position.

We saw the introduction of this QS switch on the Drag 4 and Argus MT/XT which worked really well in that you can configure the switch to operate for the separate functions giving you that extra control.

The 2 control buttons, the fire button and the lock/unlock slider have a positive “click” feel to them although there is a very slight movement in these buttons which can at times cause a very tiny rattle.

All of the user information is clearly visible on the display, even in bright sunlight. Different color display options are selectable via the “Colour” menu. Further explanation of these options and the different menu settings are detailed in the Functionality section of this review.

Main display on the Drag M100S

The information on the main display includes the following:

  • Selected mode (RBA / Smart / Eco / TC)
  • Single battery level icon with %
  • Wattage / Voltage / Temperature levels
  • Lock / Unlock
  • Coil resistance reading
  • Puff Counter
  • Vape time duration

Control of the Drag M100S is carried out by the GENE.TT 2.0 chipset and provides all the necessary protection and will display these notifications on the 1.25inch OLED display screen:

  • Time Out
  • Check Atomizer (no resistance detected)
  • High Temperature Protection
  • Low Voltage / Battery Low
  • Atomizer Short / Low Resistance Protection
  • Same / New Coil Selection
  • Device Lock / Unlock
  • Charging
  • Max Power
Drag M100S mod in hand

I’m very impressed with the design and appearance of the Drag M100S mod. The build quality and aesthetics look and feel really good. The menu structure is clear and concise and easy to follow. The different color options should appeal to a wide audience and the Silver/Black one we received is beautiful, although I’m really tempted to buy one of the wood effect versions.

The Drag M100S will perform most functions although Temperature Coefficient of Resistance (TCR) and Variable Power Curve (VPC) are not included. That’s not a game changer as everything it does have works really well.

UForce-L Tank

5.5ml UForce-L Tank and 2ml UForce-L Tank
5.5ml UForce_L Tank Vs 2ml UForce-L Tank

As we mentioned in the Features and Specifications section, we received the TPD variant of the UForce-L tank which has a 2ml e-liquid capacity. This means the overall length of the tank is slightly smaller than its standard non-TPD version. The UForce-L tank is 25.5mm wide by 53mm tall. We have reviewed the UForce-L tank before in the Drag 4 and Argus MT/XT reviews but those tanks were the 4ml and 5.5ml versions.

Voopoo UForce-L 2ml Tank
Side View of the UForce-L Tank View 1
Side View of the UForce-L Tank View 2

Made out of stainless steel, the UForce-L tank feels very solid and really well made. The threads feel smooth and well machined and the removable top cap has a positive close and lock action to it. It’s a pretty heavy tank weighing in at 86 grams minus the coil.

UForce-L Tank with 810 wide bore drip tip removed
UForce-L Tank with the top cap removed

Its top fill design is child-proof and incorporates a quarter turn lift off top cap which is knurled to aid greater grip when removing. The wide bore drip tip is removable but it’s a very tight fit and the two O-rings on the drip tip do a great job of keeping it in place.

UForce-L Tank Top cap removed showing both fill ports and the two tags on the reverse side of the top cap that lock into the tank

The reverse side of the top cap has a small clear silicone rubber seal around the base of the center section that fits into the opening to the chimney on the UForce-L tank to make an airtight seal. There are two small tags on this center section that locate in the chimney opening and when turned lock it securely.

UForce-L Tank knurling on the top cap and the O-Ring around the center of the top section

When the top cap is removed, there are two fill ports; each with a silicone membrane seal that you pass your needle tip e-liquid bottle through to fill the tank. Either of the two fill ports can be used as the other opening is used as an air release so your e-liquid doesn’t spill back out.

E-Liquid bottle tip inserted into the UForce-L Tank filling port

These two fill ports are oval shaped and measure approximately 8mm. Larger stubby tip bottles do take a little bit of fiddling and have to be pressed firmly into one of the fill port openings in order to fill without spillage.

There is a slightly raised silicone lip on the opposite side to the two fill port openings with the height matching the silicone surround of both fill ports. This I assume is to make a symmetrical seal when the top cap is fitted.

UForce-L Tank with Airflow Open
Airflow Open
UForce-L Tank with Airflow Closed
Airflow Closed

Airflow is achieved by a variable airflow control ring at the top of the tank. Yes….top airflow so no leaking! There is no end stop so the control ring will continually turn round. With the quarter turn top cap removed, you can pull off the airflow ring for cleaning. This ring will only fit back on one way around.

Close Up view of the triple airflow slots on the UForce-L Tank

The innovative design of the airflow is such that unlike the normal dual Cyclops slots, the UForce-L tank has triple airflow slots around the diameter of the tank. Each of these slots has two center sections meaning there are again triple inlet vents per slot. This makes for a very airy tank and does produce one of the best Direct to Lung (DTL) draws I’ve come across.

Heak sink style base of the UForce-L tank

Another quirky feature of the UForce-L tank is the heat sink style base. Instead of the base section of the tank being solid, two deep cutouts have been milled out of the base effectively providing a heat dissipation effect. I’m not sure if it was intended as a heat sink, but I’m guessing it was, and nevertheless it adds to the overall look of the tank.

On the inside of the 510 base, there is a gold plated spring loaded center coil positive contact pin that’s isolated from the base plate with a silicone seal. Either side of this pin are two smaller spring loaded negative coil contact pins.

Heat sink base section removed from the UForce-L tank showing the spring loaded coil contact pins in the base and the coil removed.

Once the 510 base is removed, the 2ml Pyrex glass can then be gently eased off from its silicone rubber seals if cleaning is needed or you wish to replace with the spare glass.

Voopoo UForce-L Tank with the two supplied PnP TW coils

With the range of push fit PnP coils available, the UForce-L tank really does become extremely versatile. Two coils are supplied with the Drag M100S kit, a 0.15 ohm mesh TW15 coil rated at 55W –70W and a 0.2 ohm mesh TW20 coil rated at 40W – 55W.

There are a total of 11 different PnP coil types that fit the UForce-L tank and it also has an RBA coil so you can wrap your own coils if you wish. We do have a Coil Wrap Calculator that takes all the guess work out of determining how many wraps you need to achieve your desired resistance for any wire type so feel free to use it.

Branding on the base of the Voopoo UForce-L Tank

Strangely enough there is very little branding on the UForce-L tank. On the base (underneath) of the tank, the words “VOOPOO” and “Designed by Voopoo” are printed in small lettering together with the CE markings. The only other markings are on the chimney section. There are 3 images of a 3 headed Wolf like figure with what looks like a fang neck collar.

Color wise, I believe the UForce-L tank is available in 3 different color options; Black, Gunmetal and Silver. I have the Black version from previous reviews and now the Silver version which you can see throughout this review.

UForce-L Tank dismantled into 6 sections plus the coil

The UForce-L tank dismantles into 6 sections, excluding the coil, with 2 O-rings sealing the Pyrex glass, 1 O-ring sealing the airflow control ring, 1 O-ring sealing the 510 base section, 1 O-ring sealing the removable top cap and 2 O-rings on the 810 drip tip.

I have to say the UForce-L is one of the best looking and functional tanks I’ve ever come across. For me it has everything going for it and the top airflow means it’s completely leak-proof. While I liked the black version, I’m favoring the silver (chrome) variant as it’s easier to see the position of the 3 top airflow slots.

Voopoo Drag M100S Mod Functionality

Voopoo Drag M100S showing the 1.25inch OLED Display

The Drag M100S mod is a 5W-100W variable power (wattage) device which also includes 4 different temperature control modes (SS316, SS430, NI200 and TI). There are also modes for “Smart” coil detection and an Eco mode to conserve battery power.

When using the Drag M100S with a 20700/21700 battery, the maximum wattage available is 100W. If using an 18650 battery with the included adaptor then the power level is reduced and limited to a maximum wattage of 80W.

Although it facilitates temperature control, there is no option for setting your own Temperature Coefficient of Resistance (TCR) values. It’s not really an issue as Voopoo (as far as I’m aware) are the only company that incorporates 4 of the most common wire types.

Accessing these different functions is carried out using combinations of the fire button and the + and – buttons with the 1.25inch colored OLED display highlighting all these changes.

It’s worth having a read of the manual to familiarize yourself with the structure of the menus. The manual is very good as it shows and explains all of the available options. The menu structure is straightforward and easy to follow but I would recommend having a play with the different menu options to familiarize yourself before you fit the UForce-L tank.

A quick start guide of the basic functions are:

  • Front slide switch will lock/unlock the device, power on/off or lock the +/- buttons
  • Fire button pressed 5 times turns the device on or off
  • If front switch is configured to on/off, fire button pressed 3 times will lock/unlock the device
  • + button will increase the wattage in 1W steps
  • – button will decrease the wattage in 1W steps
  • + and – buttons together will switch to the menu settings
  • Fire button and – button together clears the Puff counter
  • In TC mode, Fire button and + button will access the Wattage
  • In TC mode, Fire button and – button will switch between degC/degF
  • In TC mode, + button will increase the temperature in 1 deg steps
  • In TC mode, – button will decrease the temperature in 1 deg steps

Included on the 1.25inch OLED colored display Main screen is all of the read-out information as follows:

  • Numerical Wattage/Temperature values
  • Selected mode (RBA / Smart / Eco / TC)
  • Battery level icon with % value
  • Smaller Wattage / Voltage levels
  • Lock / Unlock
  • Coil resistance reading
  • Puff Counter
  • Vape time duration
Drag M100S Main Screen Display

Also the safety read-outs and the protection of the Drag M100S are:

  • Reverse Battery Protection
  • Overtime Protection (10s)
  • No Atomizer (open circuit protection)
  • High Temperature Protection
  • Low Battery (low voltage protection)
  • Atomizer Short (short circuit protection)
  • Over Charge Protection
  • Over Discharge Protection
  • Max Power Protection

Turning the Drag M100S mod on/off is carried out by pressing the fire button 5 times in quick succession. When turning on, the screen will display “Voopoo” with “Just Drag” and then the control chip version “GENE.TT 2.0”. After that, the display shows the mode you are in, displaying the coil resistance, volts, wattage or temperature, puff counter, vape time reading and battery status.

When turning off, press the fire button 5 times in quick succession and the mod will display “OFF” and then shut down.

Switching between the different modes is very straightforward and the display is very intuitive. The display is not cluttered and the size of the numerical information, especially the wattage/temp values make it easy to read. Brightness of the display is nice and you won’t have any trouble seeing it in normal sunlight.

Inactivity of any button presses after a period of 30 seconds will put the display into standby mode (blank). When the Drag M100S is not used for an hour or more, the device goes into semi-lock mode. The first press of the fire button won’t activate the device so you’ll have to press the button again for it to activate.

The multi-function toggle button (QS) switch just above the Type-C charging port can be configured from the “Switch” menu to lock/unlock the Drag M100S, lock/unlock the wattage/temperature control buttons or power the device on/off.

Drag M100S QS Switch Menu Screen
  • Device Lock/Unlock
  • Power On/Off
  • Wattage Adjustment Lock/Unlock

Moving the slider switch button to the right will put the Drag M100S into the lock position. The main display screen will show a locked red padlock symbol over the small “W” icon at the bottom right of the large numerical wattage value or to the right of the selected mode, depending on how you’ve configured the QS switch to operate. Moving the slider to the left position will unlock the function.

Drag M100S Display Screen Showing Control Buttons (Wattage) Locked
Drag M100S Display Screen Showing Device Locked

If you’ve configured the QS switch to turn the Drag M100S on/off, moving the slider button to the right will turn the device off and moving the slider button to the left will turn the device on.

Menu Settings

To gain access to the menu screen settings, press the + and – buttons together. The display will switch from the main screen to a menu screen showing the following:

  • Mode (additional menus)
  • Switch (additional menus)
  • Puff Reset – Yes/No
  • About – Chip ID / Level Code
  • Colour (additional menus)
  • Exit – Returns to Main screen display
Drag M100S Display Screen Showing Menu Setting Options View 1
Drag M100S Display Screen Showing Menu Setting Options View 2

Use the + or – button to scroll through the available options. As you scroll through each one, the one that’s selected will be highlighted. Press the fire button on the selected option and it will take you to that particular menu.

Mode Menu

You can select the mode of operation you require. With the Mode screen highlighted, press the fire button and it will take you to the available options under that menu:

  • Smart  –  Selects auto coil recognition
  • RBA  –  Normal power mode
  • ECO  –  Conserves battery power
  • TC  –  Temperature control  (additional sub-menus)
  • Back  –  Returns to main screen
Drag M100S Display Screen Showing Mode  Menu , Smart, RBA, ECO and TC

Use the + or – buttons to select the mode you want by highlighting that menu. Press the fire button and it will set that mode of operation.

The only menu that has additional sub menus is the TC mode as follows:

  • Ni200
  • Ti
  • SS 316
  • SS 430
Drag M100S Display Screen Showing Temperature Control Settings

Use the + or – buttons to scroll through each of the available settings. As you scroll through each one, the one that’s highlighted can be selected by pressing the fire button.

Switch Menu

You can configure the operation of the button slider lock/unlock switch. With the SWITCH screen highlighted, press the fire button and it will take you to the available options under that menu:

  • Lock/Unlock (lock/unlock whole device)
  • Power On/Off
  • W Lock/Unlock (lock/unlock +/- control buttons)
  • Back  –  Returns to main screen

Use the + or – buttons to select the mode you want by highlighting that menu. Press the fire button and it will set that mode of operation.

Color Menu

Drag M100S Display Screen Showing Colour Menu

You can change the color of the main display. With the “COLOUR” screen highlighted, press the fire button and it will take you to the available options under that menu:

  • Classic
  • Green
  • Pink
  • Purple
  • Yellow
  • Back  –  Returns to main screen

Use the + or – buttons to select the color you want by highlighting that menu. Press the fire button and it will set the display screen to that color.

Temperature Control Adjustment

If you want to vape in temperature control mode, select the Mode menu using the +/- buttons together then scroll down to TC and press the fire button. The screen displays the 4 different options of Ni200, Ti, SS316 and SS430.

Drag M100S Display Screen Showing Temperature Control

Select the option you require and press the fire button. The main display will now show the mode you’ve selected and the numerical value of the temperature in either Celsius or Fahrenheit.

The + and – buttons will increase and decrease the temperature values and pressing the fire button and – button together will switch between degrees Celsius and degrees Fahrenheit. The range of temperature control for each mode is:

  • Celsius – 100C -315C
  • Fahrenheit – 200F – 600F

To alter the wattage while in temperature control mode, press the fire button and + button together. The small “W” wattage value to the right of the battery icons will flash. While it’s flashing, use the + or – buttons to select the maximum wattage that can be achieved.

Overview of Modes

The user manual, while covering the available options, doesn’t quite detail what each mode setting does. To give a little insight into what the different options mean, we’ve included a brief description below:

Smart Mode

Drag M100S Display Screen Showing Smart Menu

Smart mode will auto detect the type of coil fitted and set the optimum wattage for that coil. This is only a guide as you can adjust the wattage up or down using the + / – control buttons. What the Smart mode does is limit the maximum wattage you can go up to depending on the coil type you’re using.

You won’t be able to increase the wattage beyond the maximum wattage specified for the type of coil that’s in the tank. In the case of the two different coils supplied, the maximum wattage available before the display indicates “MAX POWER” is:

  • TW15 (0.15 ohm) = 80W
  • TW20 (0.2 ohm) = 60W

RBA Mode

Drag M100S Display Screen Showing RBA Menu

RBA mode, while meaning something different to me (Rebuildable Atomizer), is basically the standard wattage mode. The Drag M100S will operate between 5W all the way up to 100W in 1W increments. Holding down the + or – button will scroll through the increments faster.

There is no round robin when using the + / – buttons, once you reach the maximum value (100W) the display will show “MAX POWER”. You will have to press the – button to go back down and vice versa for the minimum value.

ECO Mode

Drag M100S Display Screen Showing ECO Menu

Eco mode is a selectable option and Voopoo state it works to conserve battery power. Switching between ECO mode and RBA mode, irrespective of the remaining battery charge didn’t appear to show any difference in power.

When operating in any mode other than ECO, once the remaining charge of the battery reaches around 10%, an icon appears on the display asking if you want to enter the ECO mode “Y” of “N”. Selecting “Y” will take you into ECO mode, selecting “N” returns you to the mode you were in.

What I have noticed is occasionally once the battery display shows around 10% remaining charge, the mode switched from RBA to ECO automatically without displaying the prompt. While the ECO mode is designed to reduce the power/voltage to the coil once the battery falls below a certain point, I still struggled to identify any difference in the intensity of the vape.

That covers the functionality and what the Drag M100S mod is capable of doing. The menu structure is very intuitive to navigate though and once you’ve familiarized yourself with the options, it’s very easy to use.

The 1.25inch OLED screen is bright, crisp and the detailed information is clearly visible. The main numerical wattage and temperature levels are large and very easy to see.

Voopoo Drag M100S Kit Performance

Voopoo PnP TW15 and PnP TW20 coils

Both the TW15 and TW20 provided in the Drag M100S kit are Direct-To-Lung (DTL) coils. I’m not sure if these coils are Kanthal A1 mesh or Stainless Steel mesh coils as I couldn’t find out any details on the wire type.

I don’t normally vape in TC mode therefore my performance tests were only carried out in RBA and Smart mode.

Even though I verified what the wattage values were in Smart mode for each coil, I always bed my coils in well below the minimum recommended wattage level so as not to stress the coils too quickly.

Top view of the two PnP TW coils supplied with the Drag M100S Kit
Top and bottom view of the two PnP TW coils supplied with the Drag M100S Kit

Because the PnP TW coils are quite small, I decided to use my 50/50 PG/VG ratio e-liquid when performing these tests. Don’t worry, I have used 30PG/70VG e-liquid through these coils with no dry hits or issues at all. Some websites specify they are sub ohm coils so high VG is recommended, others say a 50/50 e-liquid is best. Irrespective of this, both ratios work really well.

TW15 (0.15 ohm) Mesh Coil

Voopoo PnP-TW15 0.15 ohm 55W-70W

Voopoo specify the minimum and maximum wattage range for this coil is 55W – 70W.

When the Drag M100S is set to “Smart” mode, the wattage will be automatically set to 65W.

After priming the coil, filling the tank with 50VG/50PG Watermelon e-liquid and waiting for 10-15 minutes, I set the wattage to 20W to take a few draws to bed the coil in. Even at this wattage, the flavor was present and was giving an ok vape.

Taking it up to 30W was another experience altogether, with everything starting to perform really well. The flavor and vapor came through really good. At between 40W and 50W the flavor was spot on and the vapor was insane.

Increasing the wattage to 55W and then finally to 70W was amazing. Way too intense for me but the cloud chasers out there will love it! Getting these results from a coil of this size and at this relatively low wattage is very impressive.

My ideal wattage for this coil was 45W with the airflow 3 quarter open. The airflow on this tank is nothing short of amazing. It produces one of the best DTL draws I’ve experienced.

My puff counter currently shows 2768 puffs on this coil and it’s showing no signs of flavor loss, with not a dry burn and NO leaks. I’ve been using this coil type in both the Drag 4 kit and Argus MT kit and while admittedly I keep the wattage below the recommended power for the coil, I’m getting nearly six weeks of use out of each coil.

TW20 (0.2 ohm) Mesh Coil

Voopoo PnP-TW20 0.2 ohm 40W-55W

Voopoo specify the minimum and maximum wattage range for this coil is 40W – 55W.

When the Drag M100S is set to “Smart” mode, the wattage will be automatically set to 50W.

After priming the coil and using the same e-liquid and VG/PG ratio as the TW15 coil, I started off at 10W. The flavor and vapor was barely present as expected. Increasing the wattage to 15W started to produce decent flavor and quite dense vapor.

At 20W everything started to perform really well even though it needed a 5 second draw. Incrementing the wattage in 5W steps improved the flavor and vapor each time and resulted in a shorter draw being needed.

At 40W all that was needed was a short 2 second puff which provided really nice flavor with off the charts vapor. It really did produce dense clouds of vapor!

Increasing the wattage to 55W was very impressive and powerful but for my vaping style I was very happy reducing the wattage back down to 30W with a longer draw. This also provided a cooler vape which I prefer.

Flavor and vapor was equally as impressive as the TW15 coil. Airflow control really is amazing, a smooth draw with no turbulence and VERY airy with the airflow open and an RDL draw with the airflow virtually shut off.

Again I’ve been using this coil type in the other Voopoo mods and it’s performing really well and maintaining the flavor and vapor output for well over a month.

Coil Summary

Both these coils produced terrific results. I use a lot of different Voopoo PnP coils in other mods/pods I have and the flavor from them has always been very good. These are no exception! The amount of vapor really surprised me; for quite small coils and not really that high a wattage, the vapor was off the charts.

Vaping on these coils at lower wattages can be done with very good results, using them on the recommended wattage was a little too intense for me. Below the minimum for me suited my vaping style just perfect.

Airflow, as expected from the triple ports and fins, was very airy and gave one of the best DTL draws ever. No turbulence was detected and the vape draw was very smooth. It is a little noisy but I didn’t care. Reducing the airflow for a Restrictive Direct to Lung draw (RDL) needed the airflow control ring to be just off the fully closed position.

As I mentioned earlier, I do use both 50PG/50VG and 30PG/70VG e-liquids through these coils with no dry hits and no leaking.

Voopoo Drag M100S Battery Performance

The Drag M100S mod can be powered by either a single 18650 battery using the included battery adaptor or a single 20700/21700 battery.

Voopoo Drag M100S with an 18650 battery being inserted
Voopoo Drag M100S with an 20700 battery being inserted
Voopoo Drag M100S with an 21700 battery being inserted

Throughout the time I’ve been reviewing and using the Drag M100S, I’ve tried different sized batteries just to verify that each size battery works accordingly. Bear in mind that the maximum wattage the Drag M100S will operate at is dependent on the size of battery you’re using. I’ve highlighted the max wattage achievable against each battery type. The 3 different types of batteries I’ve used are:

  • 18650: Samsung 30Q (20A/3000mAh) – 80W maximum
  • 20700: 20700A Molicel (30A/3000mAh) – 100W maximum
  • 21700 Samsung 40T (30A/3950mAh) – 100W maximum

Obviously the length of vape time between charges is very subjective and depends on several factors:

  • Your vaping style
  • Type of coil you’re using
  • Capacity of your battery (mAh)
  • Age and condition of your battery
  • Power level (wattage) you vape at
Drag M100S OLED display showing battery icon and remaining battery charge

The Drag M100S indicates the remaining charge status of the battery on the main display screen with the percentage value of charge left above the little battery icon. When your battery runs out of charge, the display will indicate “Check Battery” and you will no longer be able to vape. At this point you will have to recharge your battery or swap it out for another fully charged one.

Unfortunately the Drag M100S doesn’t include pass-through vaping so you won’t be able to vape while your battery is being charged in the mod. I do recommend charging your battery in an external battery charger.

Please use our Battery Amp Draw/Drain Calculator to determine the correct value CDR value battery you should use for the wattage you plan to vape at.

How do I Fill the Voopoo UForce-L Tank?

The UForce-L tank incorporates a quarter turn lift off top cap filling mechanism and is very easy to fill. Simply turn the top cap anti-clockwise until it doesn’t turn anymore and lift off the top cap.

Once the top cap is removed, there are two 8mm kidney shaped fill ports each with a slightly raised silicone rubber shroud around them. Either of these two fill ports can be used but do NOT fill down the center chimney hole.

Filling the Voopoo UForce-L Tank with E-Liquid

The second fill port opening provides an air release so e-liquid doesn’t spill back out when you’re filling up with your juice. Place your e-liquid bottle tip into one of the fill ports and fill with your favorite e-liquid to just below the top of the glass tank.

When replacing the top cap, align the small protruding tags on the underside of the top cap so it fits flush into the center hole of the tank. Turn the top cap clockwise (quarter turn) until it locks shut.

Quick Tip: If you are filling the tank for the first time, drip a few drops of e liquid onto the wicking ports of the coil first. Push the coil into the tank then fill the tank and leave to stand for approx. 10-15 minutes before you start to vape. Also keep the wattage low initially and take a few draws to pull e-liquid through the coil. Slowly increase the wattage in small steps, each time taking a few draws until you reach your desired setting. This will help saturate the wick fully in e-liquid and prolong the life of your coil.

How do I Change the Coil in the Voopoo UForce-L?

When the coil you’re using shows an “Atomizer Short” or your e-liquid starts producing a burnt taste it’s time to replace your coil with a new one.

Unscrew the UForce-L tank off the Drag M100S mod. Grasp both the top cap and glass tube then slowly unscrew the bottom 510 threaded base section anti-clockwise. Continue unscrewing until the base section comes away from the main body of the tank.

Voopoo UForce-L Tank with base removed and coil out of the tank
Voopoo UForce-L Tank with base removed and coil being inserted into the tank
Voopoo UForce-L Tank with base removed and coil inserted into the tank

Because the Voopoo coils are a push fit type, simply pull the old coil out from the bottom of the tank and replace with a new one.

Do note if the tank has e-liquid in it while you’re removing the coil, e-liquid will spill from the tank. The best method to avoid this or to keep e-liquid spillage to a minimum is to hold the tank upside down (drip tip pointing downwards), place your finger tightly over the opening of the drip tip and then remove the coil.

Replace with a new coil while still holding your finger over the drip tip. Turn the tank the right way up and take your finger off the drip tip. Resecure the base section ensuring it’s securely fitted but not over tightened.

Fill the tank up with your e-liquid using the procedure outlined in How Do I Fill The UForce-L Tank.

Do ensure that your new coil is primed and when filled, left to stand for 15 minutes so the e-liquid fully saturates the wick. See our guide on Prolonging the Life of your Coil.

I would recommend when first using a new coil to lower the wattage for the first few draws and slowly increase the wattage in increments, taking a few draws at each level until you reach the wattage your happy with. This will help to bed the new coil in and prevent premature ageing.

How do I Charge the Voopoo Drag M100S Mod?

Charging the Voopoo Drag M100S using the Type-C charging cable

As with most external battery mods, there are always 2 ways you can charge the battery; either in the mod itself or using an external charger (recommended).

The Drag M100S has a front panel located Type-C USB charging port just below the QS toggle button. A Type-C USB charging cable comes supplied with the kit. Simply connect the cable into the USB port on the front of the Drag M100S mod and the other end into a suitable USB power source. The specified charging circuit of the Drag M100S is 5V/2A.

Alternatively, and I would recommend this, when your battery is exhausted simply remove the battery from the bottom of the Drag M100S and replace it with a fresh fully charged battery. I tend to have several spare fully charged batteries to hand so I’m never without a working vape.

At the point the battery in the Drag M100S becomes discharged, the display will indicate “Check Battery” and you will no longer be able to vape. Once this happens you will need to recharge your battery.

Battery charging screen on the Voopoo Drag M100S mod

If you’re charging the battery in the Drag M100S mod, when it’s first placed on charge the main display will switch after a few seconds to a battery charging icon screen showing a dotted circle with the real time percentage value of the battery. Underneath this is a moving data type icon that makes it look like power is going into the battery.

After approximately 10 seconds, the screen brightness will dim down to half brightness. A further couple of minutes later the display goes blank. At this point there is no visual indication that the battery is being charged.

Side view of the Voopoo Drag M100S Kit

To see the charge status of your battery, you will have to press either the fire button or the +/- control buttons on the Drag M100S to bring up the display again, but it will only remain visible for another few minutes.

Full charge is achieved when the battery indicates 100%. The Drag M100S does stop charging when full charge is reached but again there is no display indication that lets you know this unless you press a button.

Unfortunately Voopoo use this method of charging display on several of their mods. While it’s not a problem, I do prefer to have a visual indication of the battery being charged throughout the charging cycle.

There is no Pass-through function on the Drag M100S so you won’t be able to vape while it’s being charged. This further cements the advantage of charging your battery in an external battery charger and having spare charged batteries so you can just swap them out.

Charging time from full discharge to full charge took approximately 2.5 hours on my 3000mAh battery when using a standard 5V/2.1A source. This time will vary depending on the current rating of the source plug and the capacity of the battery you’re using.

As with any vape device, ALWAYS charge the mod resting on a non-flammable surface and NEVER leave your mod unattended whilst charging.

If you prefer to charge your battery externally always use a reputable charger. Please take a look at our guide on the Best 18650/21700 Battery Chargers.

Voopoo Drag M100S Kit Price

The Voopoo Drag M100S mod together with the UForce-L tank is a fantastic looking kit and performs very well. The quality of both the mod and tank are really impressive. 100W of power and the ability to use either a single 18650/20700/21700 battery is really handy.

I predict after using the Drag M100S kit it will be on many peoples Christmas lists. There is very little not to like about this kit. I won’t go on about all the plus points other than to say if you do purchase one I honestly don’t think you’d be disappointed.

Expect to pay around the £50/$60 mark for the complete kit and in my opinion you will go a long way to find anything better for the price.

Voopoo Drag M100S Mod Kit Verdict

Voopoo Drag M100S Kit Review Verdict


  • Very good build quality
  • Robust and very solid
  • Wonderful aesthetics
  • Accepts 18650/20700/21700 battery
  • Multi-function lock switch
  • Great flavor and amazing vapor production
  • Fully adjustable top triple airflow
  • No leaking
  • Easy top fill
  • Clear, crisp and bright multi-colored display
  • Accepts all Voopoo PnP push fit coils
  • Temperature control option
  • Smart coil detection
  • Type-C 2A fast charging
  • Spare Glass and O-rings


  • Display doesn’t remain illuminated when charging
  • No pass-through vaping while on charge
  • I still don’t understand the ECO mode!

Voopoo Drag M100S Mod Kit Summary

Voopoo Drag M100S Kit Front View

Well… from the minute I unboxed the Drag M100S kit I was very excited to use and review it as it really did look so elegant, well made and has the loveliest finish I’ve seen on a mod for a long long time. I knew the UForce-L tank was going to perform really well as I’ve previously reviewed it with the Drag 4 and Argus MT kits.

Certainly the Silver/Black version of the Drag M100S with the Silver UForce-L tank was a perfect combination and one that I will be using for a long time to come. I really will treat myself to one of the wood versions very soon as from the pictures I’ve seen it’s too good to pass up.

The Drag M100S with the UForce-L tank has the appearance of a high end mod kit and the performance to match, yet it has a price tag that’s very affordable. The plus points of this kit; 100W power, 18650/20700/21700 battery, smart coil detection, multi-function lock switch, TC control if that’s your thing and that lovely surface finish make this a great mod.

Voopoo Drag M100S with the UForce-L Tank

As for the UForce-L tank; quarter turn top fill, triple top airflow ports, heat-sink base, multiple range of PnP push fit coils, fantastic flavor and vapor from the coils and the addition of an RBA coil option makes this a great tank in its own right. Combining the two in one kit is a stroke of genius.

Because of its power and functionality, it’s aimed at the more experienced vaper but with the Smart mode function it’s simple enough for new users to get to grips with.

The design and build quality is very good, the operation and menu structure is straightforward and simple to use and the 1.25inch OLED colored display is very crisp and clear. I would definitely recommend this device and am really enjoying using it.

Hope you enjoyed this review on the Voopoo Drag M100S kit and found it informative and useful. If you have any questions or feedback, please feel free to leave us a comment below.

If you do decide to buy one, please do drop us a line and let us know what you think of it.

Comments 1

  1. Absolutely loving the M100S and the UForce-L tank. Have been using this for over 2 months now with no problems whatsoever. Just wanted to give an update about the TW15 coil. I’m using it at 24W with airflow fully open and my puff counter is showing 5578 on this coil. Well under the recommended minimum but given a really pleasant 4-5 second slow draw. The coil is lasting ages.

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