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KeepPower 3400mAh Li-Ion Protected 18650 Battery - Single

  • KeepPower 3400mAh Li-Ion Protected 18650 Battery
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Product Description

KeepPower 3400mAh Li-Ion protected 18650 Battery Now Compatible with many 18650 Zebralight Flashlights. 

If ordering for a specific Zebralight flashlight please contact me prior to ordering for a fit test.

*Please note if placing a bulk order of 20+ units the discount is automatically applied and not eligible for any other coupons.


1.   18650 3400mAh Protected Rechargeable Battery
2.   Cell: Panasonic NCR18650B 3400mAh
3.   Min Capacity: 3250mAh
4.   Typical Capacity: 3400mAh
5.   Normal Voltage: 3.7V
6.   Quality Lithium-ion rechargeable cell
7.   In Built Safety Circuitry
8.   Protection Circuit (Against overcharge, over discharge, over current and short-circuit.)
9.   4.2 volts max voltage and 3.7 volts nominal voltage
10. Over 300 charge-discharge cycles


1. (L) 68.90mm (D) 18.6mm


1.  Do not incinerate;
2.  Do not disassemble;
3.  Do not short positive and negative contacts;
4.  Do not expose to heat;
5.  Do not completely discharge;
6.  Do not use force to install a li-ion battery;
7.  Use only high quality battery charger;
8.  Charge fully before first use;
9.  Store in cold and dry place at approximately nominal voltage.

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Product Reviews

  1. Great protected cell 5 Star Review

    Posted by on 3rd Jan 2014

    After researching reviews, feedback, ratings, performance characteristics, these cells appear to be one of the best when getting into an 18650 battery for flashlights. I ordered a single cell to try with my light and it has been working very well. I had no issues fitting this into my flashlight which I know isn't always true for every light. The ordering and shipment was quick,accurate, and packaged well from e2fieldgear so I ordered several more of these cells. Thanks for a great product and great service.

  2. Excellent battery 5 Star Review

    Posted by on 11th Nov 2013

    Do some research on the web, and you'll find that these are the highest rated 18650 battery you can buy. It holds true in real world use. Not much else to say! They're the best, and at the price E2 Field Gear sells them, with shipping from the US so you're not waiting over a month to get them, it's a no brainer...

  3. The best protected cells available! 5 Star Review

    Posted by on 1st Nov 2013

    If your looking for quality 18650 cells - look no further. These are without doubt the best protected 18650 cells on the market. 3400mah for a long lasting charge and 10+amp discharge before the protection kicks in.