Published on June 2nd, 2015 | by Rich


Fat Baby 100w Mod Review

Fat Baby 100w ModThe Fatbaby 100W Mod is an impressive box mod from Project Sub-Ohm. 

The same folks who brought you the popular little man box mod.

It’s a device that is full of power but at a price that is affordable.

It not only is capable of up to 100 watts of power but it fires coils o f 0.2 ohm up to 3.0 ohm.

Fat Baby 100w Mod | | Only $99.99!


  • Output Power: 10W – 100W Output
  • Voltage: 1.5V – 7.0V
  • Loading Resistance: 0.2 ohm – 3.0 ohm
  • Output Short Circuit Protection
  • Reverse Battery Protection
  • Dimensions: 102mm x 56mm x 23mm (2-3/16″ x 4″ x 7/8″)

Tons of Features

  • Gorgeous display and Fatbaby greeting
  • Full aluminum body
  • Capable of firing 0.2 ohm – 3.0 ohm build
  • Capable of putting out 100 Watts of power
  • Beautifully engraved with Project Sub-Ohm Logo and Fatbaby logo
  • Roman numeral serialization
  • Matches all other Project Sub-Ohm products
  • Unique and elegant gift box
  • Mod Type: Variable Wattage
  • Wattage Range: 10W – 100W
  • Thread Type: 510
  • Compatible Batteries: 18650

What’s in the Box

  • (1) “Fatbaby” Mod by Project Sub-Ohm
  • (1) Screwdriver
  • (4) Copper center pins
  • (4) Stainless steel screws for back battery door
  • (1) Instruction manual
  • (1) Signature “Fatbaby” Mod gift box with Project Sub-Ohm™ and Fatbaby logo

What Type of Battery Does it Take?

The battery used on the Fatbaby 100W is a dual IMR 18650 battery.

There are two screws in the box if you need them but you shouldn’t.

In addition, there are a couple of magnets, which make it easy for you to swap batteries without using the screws.

You should only use 30 amps or higher IMR batteries and always turn off the Fatboy when changing batteries.

Make sure you use the right batteries and that they are inserted into the device correctly.

You should never use batteries where the wrapper has come off or is torn and remove them when the device is not in use.

As a final word of caution, don’t wrap the coils below what is recommended as the proper resistance.

Fat Baby 100w Mod has low prices right now!

Threading on the Fatbaby 100W Mod

It comes as no surprise that the threading on the Fatboy 100 Watt Mod is 510. The 510 pins are reverse threaded.

Wattage and Voltage

  • Output Power: 10W – 100W
  • Output Voltage: 1.5V – 7.0V
  • Loading Resistance: 0.2 ohm – 3.0 ohm

How Does it Look?

Fat Baby 100w ModThe Fatbaby 100W is designed very nicely.

It has an easy to read display that greets you with the Fatbaby logo when it is turned on. It displays battery life, wattage, output voltage, and resistance.

The color choice is only black but it still has a mature looking design that appears quite clever.

It has the Fatbaby logo and the serial number is underneath that.

Now what is different about the serial number is that it is in Roman numerals.

These are usually carved by hand and extremely labor intensive, which shows how much care has gone into the creation of this device.

The device also has a DNA helix in the middle with scientific elements on the outside, in a group of three.

The firing button is large and easy to use and the plus and minus buttons are a tad smaller but all of the buttons click well and have that “click” to them that is crisp and sharp.

Best Clearomizers and RDA’s

The Aspire Atlantis and the Subtank both work great on this 100 watt mod.

The 510 connection threading, you can choose your own favorite clearomizer.

The 510 is very solid and works well with drippers and tanks, which fit flush perfectly.

For an RDA, the mutation X v2 works swimmingly on the Fatbaby 100W box mod.

A Little More about the FatBaby

Fatbaby memeAs far as vapor production, it really lives up to the challenge.

Every vape with sub-ohm coils is quite awe-inspiring. For those who love to see a big plume of vapor, this is the perfect device.

Did we mention vapor production? It chucks great and there are plenty of clouds and more clouds. The battery power is impressive as well.

You can easily run a dual 0.6ohm build at 34 to 40 watts for about a day and a half.

You will need to recharge, and like we’ve mentioned, the batteries are seamless to change out when you do need a recharge.

The lowest resistance reached with the Fatbaby is 0.2 ohm so you get a lot of vapor out of this mod.

In fact, the vapor production with sub-ohm coils is spectacular. This particular build is an improvement over the Fatbaby V1.

Fat Baby 100w ModThe difference is that the center copper pin is now spring loaded adjustable. 

There are no more screws on the battery door which makes it a breeze to change the batteries out.

Instead, there are now magnets which makes things much more seamless.

There are screws that come in the box but you really don’t need them because the back is very securely fit.

It’s very sturdy too. Even after being dropped a few times, there’s no damage to the functionality of the device and the look is clean with a slick coating that handles well.

It fires every RDA used and they all sit flush. The fire button is very clicky and fires each and every time, without fail.

Similar Mods to the Fatbaby 100W

A few mods that are similar to the Fatbaby 100W are the Sigelei 100W APV Box Mod, the Simeiyue SMY GOD180 5-180W APV Box Mod, and the IPV4 100 Box Mod.

Best Deals on the Fatbaby

Our favorite choice for a great deal on the Fatbaby 100W Mod is where you can pick up this baby (see what I did there?) for just $99.99 and save on accessories.

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Vista Vapor

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At 2 bucks for 12mL, it’s about as cheap and risk free as it gets when it comes to sampling a new type of juice. This is a limited time offer, so don’t miss your chance and order yours today!

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Final Thoughts

One thing to keep in mind that is helpful is that all of the Project Sub-Ohm products work in tandem together and this includes the tanks.

It’s beautifully engraved with great attention to detail and you’ll probably love the Roman numeral serialization which is quite different and more elegant than just a few serial numbers tacked on.

The display is eye-pleasing with the Fatbaby logo and it shows the battery power, volts, wattage, and ohms.

Given the power, the features, and the build of this 100 watt mod, the Fatbaby is a steal at under $100.

Want your own Fat Baby 100w Mod? Click here for the Best Deal!

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