Test/Review of Keeppower 14500 840mAh (Black) 2015

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HKJ
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Test/Review of Keeppower 14500 840mAh (Black) 2015

Keeppower 14500 840mAh (Black) 2015

DSC_1096

Official specifications:

  • Capacity min.: 800mAh
  • Capacity typ.: 840mAh
  • Nominal voltage: 3.70V
  • Charge voltage: 4.20+/-0.05V
  • Standard discharge cut-off voltage: 2.50V
  • Standard charge current: 500mA
  • Charge termination current: 20mA
  • Standard discharge current: 800mA
  • Max. continuous discharge current: 4A


Keeppower%2014500%20840mAh%20(Black)%202015-info

Keeppowers high quality 14500 battery with protection.

DSC_1094 DSC_1095

DSC_1097 DSC_1098

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Keeppower%2014500%20840mAh%20(Black)%202015-Capacity

The cells have good capacity and decent current capability, but performance is a bit lower than last year. I wonder why (Maybe the cells has been in storage for some time)?

Keeppower%2014500%20840mAh%20(Black)%202015-CapacityTimeHours

Keeppower%2014500%20840mAh%20(Black)%202015-CapacityTime

Keeppower%2014500%20840mAh%20(Black)%202015-Energy

Keeppower%2014500%20840mAh%20(Black)%202015-PowerLoadTime

Keeppower%2014500%20840mAh%20(Black)%202015-TripCurrent

Keeppower%2014500%20840mAh%20(Black)%202015-Charge



Conclusion

It is good cells and one of the best 14500 on the market.



Notes and links

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

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

Edited by: HKJ on 11/03/2015 - 00:08
mongoose
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Thanks hkj. Another great. and more importantly, trustworthy review! Smile

homer

Ormbett
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Thank you very much for the review!

vēer
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Thanks, HKJ!

Well, why do they advertise this as 840mAh battery, when in real life you couldnt get even 800mAh out of it?

Wheres the catch, much lower discharge voltage when testing in their factory?

HKJ
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vēer wrote:
Well, why do they advertise this as 840mAh battery, when in real life you couldnt get even 800mAh out of it?

Mostly to avoid confusion with their cheap 14500 battery that has 800mAh.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

akhyar
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Thanks for the review HKJ

MountainKing
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hum looks good….My ZL 14500 barely is able to hold the 500 lumens from my H52W. It keeps stepping down to about 280 lumens…..Even after being full charged.

Time for some new batteries Smile

Thanks for the review HKJ!

Edit: From what vendor did you buy those cells?

Never ever forget and forgive. Niwal**er new kid on the block trying to act tough.
http://budgetlightforum.com/node/24847
Do not support this brand.

DINODIRECTSCAM COMPANY. DO NOT BUY
http://budgetlightforum.com/node/11324?page=2#comment-254983

HKJ
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MountainKing wrote:
Edit: From what vendor did you buy those cells?

As it says in the review: The batteries was supplied by Keeppower for review.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

MountainKing
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HKJ wrote:

MountainKing wrote:
Edit: From what vendor did you buy those cells?

As it says in the review: The batteries was supplied by Keeppower for review.

rofl. I read everything except that last line. :stupid:

Never ever forget and forgive. Niwal**er new kid on the block trying to act tough.
http://budgetlightforum.com/node/24847
Do not support this brand.

DINODIRECTSCAM COMPANY. DO NOT BUY
http://budgetlightforum.com/node/11324?page=2#comment-254983