Test/Review of Keeppower 14500 840mAh (Black) 2014

[HKJ]

[SIZE=+3]Keeppower 14500 840mAh (Black) 2014[/SIZE]

Official specifications:

• 14500 840mAh Protected Rechargeable Battery
• Min Capacity: 750mAh
• Typical Capacity: 840mAh
• Normal Voltage: 3.7V
• High Discharge Rate (Max 2C)
• Protection Circuit (Against overcharge, over discharge, over current and short-circuit.)
• 4.2 volts max voltage and 3.6-3.7 volts nominal voltage.
• Over 500 charge-discharge cycles
• Size: L:52.50mm*D:14.25mm
• Cell: Sanyo UR14500P

Keeppower has two 14500 batteries in their program, this is the one from Sanyo (The other cell is from DLG and is marked 800mAh).

The battery is fairly constant in capacity up to nearly 2A.

This battery has higher protection trip current than last time I tested it.

[SIZE=+3]Conclusion[/SIZE]

I have tested this battery once before (That time is was marked 800mAh) and got exactly the same discharge curves.
This is not very surprising with a Sanyo cell inside, this can only be a very good battery, even with the slightly high protection trip point.



[SIZE=+3]Notes and links[/SIZE]

The batteries was supplied by Keeppower for review.

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Comparison to other LiIon batteries

 

[SchwarzeWolke]

Nice! So the Sany driven 14500 are available again!

 

[MBentz]

Anyone know if these have a more pronounced button top than the Zebralight 14500?

 

[Charles L.]

Don't have a ZL 14500 so can't compare, but the button top does not protrude very far on the Keeppower. Having said that, this battery is just long and/or thick enough that it will not work in several of my older 14500 lights: Jetbeam RRT-0, 4Sevens Quark AA, Peak El Capitan. Nor does it fit in my L3 Illumination L10. It does work in my Nitecore SRT-3, but that's it for my lights. Back to AW's for me.

 

[candle lamp]

Thanks again for the excellent review. HKJ! :thumbsup:

 

[Charles L.]

Thanks again for the excellent review. HKJ! :thumbsup:

Yes, I jumped straight into discussing the size issues I had with this particular battery when I should first have said thank you for another great review!!