Test/Review of Keeppower IMR18650 2900mAh (Black) 2014

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HKJ
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Test/Review of Keeppower IMR18650 2900mAh (Black) 2014

Keeppower IMR18650 2900mAh (Black) 2014

DSC_4419

Official specifications:

  • KeepPower 18650 3.6V/3.7V 2900mAh High Drain Li-ion Rechargeable Battery
  • Min Capacity: 2750mAh
  • Typical Capacity: 2900mAh
  • Normal Voltage: 3.6V
  • Quality Lithium Ion rechargeable cell made in Japan
  • Maximum Capacity and Reliability
  • Maximum Constant Discharge Current: 10A
  • 4.2 volts max voltage and 3.6-3.7 volts nominal voltage
  • Button top: Yes
  • Dimension: (D)18.50mm*(H)66.50mm
  • Weight: 46.0g


Keeppower%20IMR18650%202900mAh%20(Black)%202014-info

This is a high capacity high current battery

DSC_4418

DSC_4420 DSC_4421

DSC_4422
DSC_4423

Keeppower%20IMR18650%202900mAh%20(Black)%202014-Capacity

The two cells has very good tracking and only a minor capacity loss when the current is increased.

Keeppower%20IMR18650%202900mAh%20(Black)%202014-CapacityTimeHours

Keeppower%20IMR18650%202900mAh%20(Black)%202014-CapacityTime

Keeppower%20IMR18650%202900mAh%20(Black)%202014-Energy

Keeppower%20IMR18650%202900mAh%20(Black)%202014-PowerLoadTime

Keeppower%20IMR18650%202900mAh%20(Black)%202014-TripCurrent

Keeppower%20IMR18650%202900mAh%20(Black)%202014-Charge



Conclusion

There are cells with higher voltage at high current, but none other with this much capacity.
With a Panasonic cell inside it is a very good battery, that can deliver a lot of current.



Notes and links

The battery 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

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

Edited by: HKJ on 01/26/2014 - 04:46
CRX
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Another great review, thanks HKJ.

Does this cell have the Panasonic NCR 18650PF inside?

HKJ
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crx wrote:
Does this cell have the Panasonic NCR 18650PF inside?

Yes.

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

luminarium iaculator
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Thanks HKJ,

Panasonic NCR18650PF 4,2V is the best cell for single 18650 nanjg amc7134 drivers. And this one is protected. So it is probably unbeatable battery in performance and safety. Sanyo UR2600FM (FT) is small crying baby comparing to this beast delivering much less current than NCR2900PF (IMHO).

HKJ
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luminarium iaculator wrote:
And this one is protected.

Where did you get that idea from?

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

luminarium iaculator
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So it is not protected? My apologize... I tough it was protected cell...

HKJ
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luminarium iaculator wrote:
So it is not protected? My apologize... I tough it was protected cell...

When I put "NA" in "PCB protection trip current" it is an unprotected cell.

With most batteries you can also see it on the batteries, the protection circuit is "visible" as at the bottom of the cell.

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

luminarium iaculator
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Thanks for the info,

I did not pay attention on that since it is re wrapped.

RaceR86
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Thanks for the review. Smile

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dazed1
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is there protected version of this ones?

And where to find them?

Fenix TK61 MOD> resistor, transistors, copper heatsink, Artic Cooling MX4, dedome, 3A > 5.7A ~ 1700 lumens > (600.000cd)