WARNING: This product contains nicotine. Nicotine is an addictive chemical.

Full Description

This is the Eleaf iStick 40W Battery, VS also offers the Eleaf iStick 40W TC kit. The Eleaf iStick 40W TC is the latest iStick from Eleaf - it is replacing the older iStick 30W. The Eleaf iStick 40W TC is not only an improvement over the iStick 30W both in terms of build quality and, of course, adding an extra 10W of power, but it also provides the ability to use Temperature Control coils as an option.

The Eleaf iStick 40W TC has two modes of operation:

  • Regular variable wattage mode to use with regular Kanthal coils (same as previous iStick but capable of delivering up to 40W)
  • Temperature Control mode to use with special Ni Temperature Control coils

The Eleaf iStick 40W TC is the first Temperature Control (Variable Temperature - VT) mod from Eleaf. The Eleaf iStick 40W TC is the latest iStick version from Eleaf - the latest version of the hugely popular iStick series. The Eleaf iStick 40W TC is both a VW (Variable Wattage) and a VT (Variable Temperature) device. The Eleaf iStick 40W TC - as its name implies - can power a coil up to 40W. In Temperature Control (TC) mode - the Eleaf iStick 40W TC is compatible with Nickel coil, and in Variable Wattage (VW) mode the Eleaf iStick 40W TC can use any standard Kanthal coil. The Eleaf iStick 40W TC also comes with a battery capacity of 2600mAh. The Eleaf iStick 40W TC design is similar to the previous iStick 30W version with some improvements like a better quality power button - a repositioned 510 connector to perfectly fit any 22mm tank, etc...

The Eleaf iStick 40W TC comes in 4 colors:

  • Black
  • Blue
  • Silver
  • Grey

Eleaf iStick 40W TC Battery Package Contents:

  • 1 x iStick 40W TC
  • 1 x User Manual

Temperature Control is the latest trend in the vaping community, it provides the ability to vape at different temperatures to achieve the best possible vape. Temperature Control devices are also very helpful to prevent coil burning which is important with cotton coils.

VS Comments:

At VS we select only the best devices in each category. Our temperature control devices must not only provide the ability to vape at different temperatures, but they must also be easy to use, the first generation of temp. control devices either did not work well and/or were difficult to use. We tested many of them, and had to reject them all, we hoped the technology would improve. We simply could not recommend to our members any of the first generation temp. control devices. Well... our patience paid off, the new Eleaf iStick 40W TC is easy to set up and enjoy. The Eleaf iStick 40W TC is for sure the most economical way to enter the temperature control world of vaping.

Eleaf iStick 40W TC Features:

  • Dimension: 36.2mm x 22.3mm x 77.3mm or 3-1/16"L x 1-3/8"W x 7/8"D
  • Passthrough: The battery can be recharged while vaping
  • Ultra Large Battery Capacity: 2600 mAh
  • Operating Wattage: From 1W to 40W
  • Output Voltage: 0.5V-8.0V
  • Connector Thread: 510 stainless steel thread and spring loaded connector for best connection
  • Output Mode: TC-Ni / VW Mode
  • Temperature Range: 100-315℃ / 200-600℉ (TC mode)
  • VT Resistance Range: 0.05-1ohm (TC mode)
  • VW Resistance Range: 0.15 - 3.5ohm (VW mode)


VapeShop only offers genuine products. Our members are increasingly reporting seeing clones in B&M stores and a few online sites. VapeShop strongly encourages manufacturers to use security authenticity code on all their products and we also encourage everyone to check it when available.

Video Reviews (1)

Eleaf iStick TC 40W temperature control Review On TVC
By The Vapor Chronicles
Duration: 00:25:49
Published on: 6/29/2015

Reviews (85)

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Love it!
I have several of these. My oldest is about 2 years old and still works as good as day 1. Battery last all day for me.
| 2/18/2019 10:17 AM
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Exactly What I Ordered
I have been a Vapeshop customer for several months and this was my first hardware purchase.  The Eleaf iStick is compact and provides all the amount of power I need.  I am impressed by the quick turn-around time on orders.  While I would like free shipping, the Vapeshop pricing and quick service makes up for the lack of free shipping.
| 2/14/2019 12:47 PM
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Ordered a new Battery & Coils
Customer service of this company is fantastic. Prices are great also. That is why I order from them! Keep up the good work Vape Shop!
| 2/12/2019 10:24 PM
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Eleaf istick 40w t.v. Battery
Revived in mail on time great battery
| 2/9/2019 10:12 PM
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| 10/13/2018 2:32 PM
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My Favorite
This is my favorite battery. I have several that I keep charged. They last a couple of years before I need to replace them. Holds a charge all day for me.
| 1/7/2019 7:34 PM
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Eleaf iStick 40W TC Battery
Great product, fast shipping. I am a repeat
customer, because of the this.

| 1/4/2019 2:23 PM
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Only Okay
Niece battery, unfortunately does not hold a charge well....barely makes it through half a day....we have had many of these before with no issues....I guess there must be a bad egg in everybatch.  I will say the fast shipping was awesome
| 1/4/2019 9:42 AM
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I love these batteries
I inherited a couple of these from my mom when I quit smoking cigarettes. They were already a couple of years old and I used them for another year! I just ordered two replacements. Small, simple, and they hold a charge for a good long time considering the size.
| 10/30/2018 1:30 PM
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| 10/13/2018 2:39 PM
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Excellent Durability and Price
I've been using the same old 30wat eleaf for the last three years and it still holds a decent charge and works properly despite me dropping it a number of times. I could go for some fancy high priced mod but I'd much rather stick with what I know lasts and works.
| 7/9/2018 3:20 PM
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Love this
Great price for this quality mod. I tried many mods and set ups trying to quit smoking but this is the one that satisfied me and I was able to quit smoking 2 years ago and never looked back. Great price, easy to charge and lasts a long time. I received my mod about 3 days after I ordered. Only good things to say about this mod and Vapeshop!
| 10/2/2018 12:03 PM
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Just what I was Looking for @ the right price!
I had been using an old E-Leaf 10 watt battery which was no longer giving me enough vapor.  This one has made my Aspire Nautilus tanks seem new again and I only have it set @ 17 watts.  Definitely recommend!
| 6/18/2018 10:07 PM
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Eleaf iStick 40W TC Battery
As always super fast shipping! Great item! Cant beat the price. Just sent my daughter a new set. She lost hers and fell back to cigarettes. She is back on track again. Thank you Vapeshop. Customer service is great and shipping is fast. Great company!
| 8/3/2018 4:50 PM
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Eleaf 40w, melos3, coil
Ordered new gear for my daughter, after her 30w got lost. I have used the 40w's for quite awhile and they are great. I have 2 sets with different flavors, so always have one charging. And with a Melos chamber, cant go wrong. And the Vape Shop is the best. I have ordered from them quite a few times. They make it easy and they ship fast.
| 7/11/2018 2:51 AM
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Great Mod
I have 4 Eleaf mods 3 80W with the 5000 battery and I just added the 40W. the 40W is smaller and works great for work, compact and light. I rotate them never using the same one 2 days in a row, they last from 12 to 24 months. (nothing last forever)
I started to quit smoking and it's been almost 5 years since I had a smoke.
The Vapeshop is fast shipping and the best prices you'll find.
| 6/11/2018 2:59 PM
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Excellent Mod for the Price
Very happy with the product.  Power output seems very stable and the battery life is fantastic compared to my old pen stick battery.

Would definitely buy again from VapeShop.com
| 6/8/2018 12:36 PM
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Very good product at a sensible price.
I have four of these that I switch out. I like to keep them charged, filled, and ready to go.
Good battery life T 10W.
| 5/22/2018 10:45 AM
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Great value for the money
Easy to use out of the box, balance of size and battery life.  Durable and long lasting too!
| 1/12/2018 4:22 PM
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A Fav
I've got 3 of these. Rotate them as I use. Perfect size. Awesome brand.
| 1/7/2018 5:02 PM
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