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Efest IMR 800mAh 3.7v 18350 Battery - Button Top

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Product Description

Efest IMR 800mAh 3.7v 18350 Battery - Button Top

For use with any mod taking an 18350 battery
Price is for ONE Battery. 

Safe chemistry IMR 3.7V rechargeable battery is now available in 18350 size. Can be charge with any LiIon battery charger with 4.2V output.

Nominal Voltage : 3.7V
Capacity : 800mAH 
Lowest Discharge Voltage : 2.50V
Standard Charge : CC/CV ( max. charging rate 1.5A )
Cycle Life : > 500 cycles
Max. continuous discharge rate : 8C
Height: 35.80mm
6.4 AMP Max draw. please note: this is from our tests (with our friends help)
efest claims higher but it does not calculate properly so please stay UNDER this limit

- Do not over-discharge/overcharge
- Recharge empty batteries ( resting voltage ~3.6V ) as soon as possible. Leaving LiIon batteries in discharged state will incur irreversible damage ( capacity / cycle loss )
- Do not short circuit ( will release tremendous current )
- Do not dispose of in fire.

Attention : These IMR cells have much lower internal resistance than regular LiIon 3.7V cells and they may end up with a higher ending voltage when charged in certain chargers ( especially older version WF-139 charger ). Please check the voltage of them right out of the charger to see if they are above 4.20V when fully charged with your charger. Overcharging above 4.25V may shorten life/cycles. Above 4.50V may even pop them or making them leak. DO NOT use the charger if it seems to overcharge IMR cells.

 This item cannot be sent to International destinations

Although we carry all kinds of batteries, if you are using a High Drain or Variable Voltage device, like the Lava, we recommend you use IMR Batteries.

We also DO NOT under any circumstances recommend the practice of "stacking" batteries in any of our mods or PV units. Not all batteries work well for all devices, if you are unsure, just send us an email or visit the ECF forums for more information on battery usage.
Please read again..

DO NOT under any circumstances stack two batteries for any reason in any device we sell our current line up is NOT capable of handling blowouts from the use of two batteries and you can be seriously harmed by stacking batteries in mods.

This is a claimed max 12 amp battery, if you are using this in your mods, make sure the ohms of your device does not pull more than 12 amps. 

You can use this calculator linked below (or any ohm/amp calculator) to see if your amps are too high which can ause damage to the battery or worse to your safety

Please download and read this document:
Lithium-Ion Battery Hazzrd and Use Assessment

Warranty Information

We want you to be satisfied with every product we sell. Please contact us if you experience any issues with any product we sell.

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Product Reviews

  1. Great Batteries

    Posted by Art on 2nd Jan 2014

    Batteries came in and worked like a charm. I vape heavily, and it did a decent job of lasting half the day. Definitely pick up two.

  2. good battery

    Posted by Dennis Lorenzen on 14th Dec 2013

    they work great,only problem is I got one Efest 800mah,and one AW 700 mah ,ordered 2 efest 800 mah...

  3. Good buy

    Posted by Craig D. on 27th Oct 2013

    I use a single Efest IMR 18350 battery for my Vamo V2 in short mode and it lasts me all day and night. I keep a spare fully charged so when the other one dies I'll just pop it in and I keep vaping. (I don't stack them) overall I'm very satisfied with this product from Discount Vapers. also fast shipping

  4. Great for going to mini mode!

    Posted by JOE MAL your Vapor Pal on 2nd Sep 2013

    I'm using this battery on my SIGELEI#23 mod. Makes the mod much smaller as not to be so noticeable in public. I get a good six hours of use before the battery drops from 4.2 volts to 3.7 volts. Not bad for it's size compared to a 18650 battery.

  5. Efest IMR 800mAh 3.7v 18350 Battery - Button Top

    Posted by James in Texas on 25th Aug 2013

    Great batteries. Always had good luck with Efest.

  6. Great Batts

    Posted by Jordan on 9th Jul 2013

    Did some research and settled on these as a power source. Longest lasting batts I've used. They haven't shown any signs of heating up and they still hold a charge perfectly. Good stuff.

  7. awesome batt

    Posted by johnygun on 3rd Jul 2013

    I like it, nothing more to say

  8. Awesome batteries

    Posted by Andrew on 19th May 2013

    Awesome batteries I use these primarily on the go in my Vamo in short mode. One typically lasts me through one day at work on the go. Shipping is super fast. You may find these efest a tiny bit cheaper elsewhere but with Eric's super fast shipping (almost always same day 1-2 hr's later) I prefer to get them from him.

    Thanks DV and Eric! Keep up the good work

  9. Almost perfect

    Posted by Mike Z on 6th Apr 2013

    These batteries seem to be really good. I have never had a need for an 18350 battery before. The thing I don't like about them is the capacity. I like larger capacity batteries normally. However, I didn't have a choice for my new APV. I picked up a Jazz Isis pipe. It takes an 18350 battery only. The only problem I have with this battery is that it was a little short. I needed to use a magnet to make solid contact. I would have liked to not need to do that. Other than that though, the battery has been great. It charges quickly

  10. Great batteries.

    Posted by Leo on 4th Apr 2013

    These batteries are great what else can I say. They seem to last longer than some of the other compareable batteries I have. Super fast shipping from discount vapers makes these a no brainer. If you are looking for some 18350's be sure to pick up a few of these.

  11. A couple of curious matters

    Posted by - Dick on 5th Feb 2013

    I would characterize these batteries as having 'nipples' rather than 'Button Top"...there is a difference. Due to the nipple, they do not remove as easily from the Ovale V8, but that's not a serious problem.

    I've never had battery pairs that seem to go into the charger 'unbalanced.' Often when I charge these, one light on the dual charger goes green and one red, where I would expect both red. I'm guessing that is a matter of their drainage under use. The green light changes to red after a while. I'm not sure I the charge life is up to par.

  12. last a good 5 hr

    Posted by dennis lorenzen on 17th Jan 2013

    got these when I orderd my V/8 from eric, they last for 5hr per charge,heavy vaping, good product, right on Eric...

  13. They work well.

    Posted by Unknown on 7th Jan 2013

    These V2 versions work well in my vamo mods.

  14. I am impressed

    Posted by Candi on 17th Dec 2012

    I just bought a new APV and needed this size battery. I am not an expert, so I can't compare to AW IMR. I can say that I am very satisfied with these batteries.
    Also, anyone who may be curious, these fit well in Reo VV Grand.

  15. The set lasts me all day

    Posted by nitrobex on 18th Nov 2012

    Keeps me vaping all day, holds a charge well, easy to find on my desk cause its red!

  16. Great batts

    Posted by Matt on 24th Oct 2012

    Just as good as AW cells I have used in the past, and better prices.

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