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4PCS AAA 10440 600mAh 3.7V TrustFire Rechargeable Lithium Battery with PCB Protected Board

4PCS AAA 10440 600mAh 3.7V TrustFire Rechargeable Lithium Battery with PCB Protected Board

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PCB board and high quality.
No "memory" effect, and long working time.
Over current protection, high temperature protection, over charge and discharge protection.
Great batteries for your flashlight or other devices.
Type: AAA Rechargeable lithium battery
Model: 10440
Color: Black
Rechargeable times: Up to 500 times 
Charge time: 2-3hrs
Voltage: 3.7V
Capacity: 600mAh 
Quantity: 4pcs
Size: 4.6 * 4 * 1cm / 1.8 *1.6 * 0.4in 
Weight: 32g / 1.2oz

Package List:
4 * Rechargeable Battery
Customer Reviews

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based on 211 Customer Reviews

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  • By Keith

    July 21, 2017

    In a world where protection is backwards, these are great to use on small EDC keychain flashlights that lack battery protection. The battery will basically just shut off when it gets down to 3v, and after some amount of seconds, then shuts the protection off until there's another power draw. So these batteries do their job. And the protection, at first, can easily confuse someone that they have a completely dead failed battery. As these seem to be the *only* choice for 10440s on, they work alright for me at a great price. These batteries claim 600mAh capacity, however I tested them to only have about 325mAh at most. Which is about accurate and expected as the typical capacity of 10440s is 340mAh. And never expect the best or typical from any *fire* brand.

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  • By EWC

    July 12, 2017

    Purchased (4) 10440 cells to use in a headlamp that uses 3 AAA cells. The headlamp is a cheap model that is presumably resistor based. When I measured my half used AAA batteries, they were at about 1.32V Open circuit (3.96V total), and it sagged down to about 3.4V under load. I charged up the cells to 4.2V and discharged them at .2A down to 3V and they measured from 310mAh to 321mAh. I rewired the battery holder to run the cells in parallel, and under load, the voltage sags much less. Run time will likely be decreased, but the headlamp will be brighter and lighter. Run time should be more than necessary. One note, the protected 10440 cells are longer than normal AAA batteries, so they won't fit in most applications. I cut off the protection PCB at the bottom terminal. You'll need to be diligent about charging and checking for over discharge.

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  • By Aaron B.

    July 4, 2017

    These are a protected cell and as a result, are approximately 2mm longer than a regular AAA cell. I measured a standard AAA cell at 44mm and this battery at 46mm. The advertised capacity is nowhere near 600mAh; all 4 of the ones I got topped out at slightly over 300mAh when tested for capacity. You cannot use multiple Li-Ion cells like these on series like you can alkalines, so they are really only useful in single battery application, such as a keychain flashlight, which was my intended use. Unfortunately, that extra 2mm prevents the contacts on the head of the light from making contact with the bottom half, so this will not work in a screw-type switched light. It may work in a light with a tail cap switch, however. As long as you understand the capacity is half what is advertised, these are still pretty good value for money, especially if you need a protected cell.

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  • By Billy02

    November 25, 2017

    Just what I wanted, quite pleased with purchase.

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  • By Isabella Co.

    November 20, 2017

    These are great batteries

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  • By Kimball L. Clark

    November 18, 2017

    I use these batteries to replace 2 AAA's where a little extra voltage is not a problem and they work great and a charge lasts a long time.

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  • By c***o

    December 21, 2015


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  • By s***a

    October 15, 2015

    Sehr schneller Versand.

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  • By d***t

    October 1, 2015

    Fine thenks

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  • By r***3

    September 22, 2015

    A+ Seller.Pleasure to do business with

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  • By w***s

    September 10, 2015


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  • By q***t

    August 31, 2015

    good dealer

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  • By d***6

    April 24, 2015

    alles ok

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  • By z***i

    April 23, 2015

    Great Seller!

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  • By h***n

    April 10, 2015


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  • By h***s

    March 29, 2015

    klasse okay

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  • By l***r

    March 25, 2015

    Prompt delivery. Highly recommend this seller.

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  • By g***n

    February 3, 2015

    Items exactly as described, fast shipping, excellent packaging, everything Aok

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  • By m***9

    January 24, 2015

    Low Price, Good Quality, Nice item.Thank You !

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  • By f***4

    December 10, 2014

    super good!!! thanks

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