Test/review of Keeppower 18650 3000mAh P1830R (Black) 2017

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HKJ
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Test/review of Keeppower 18650 3000mAh P1830R (Black) 2017

Keeppower 18650 3000mAh P1830R (Black) 2017

DSC_2613
Official specifications:


  • Part No.: P1830R
  • Protected 18650 Li-ion Rechargeable Battery
  • Minimum Capacity: 2900mAh
  • Typical Capacity: 3000mAh
  • Normal Voltage: 3.7V
  • Maximum Continuous Charging Current: 5A
  • Maximum Continuous Discharging Current: 15A
  • In Built Safety Circuitry
  • Protection Circuit (Against over charge, over discharge, over current and short-circuit.)
  • 4.20V maximum voltage and 2.50V cut-off voltage
  • Over 500 charge-discharge cycles

Keeppower%2018650%203000mAh%20P1830R%20(Black)%202017-info

This is a high current protected 18650 cell from Keeppower

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DSC_2614DSC_2615

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Keeppower%2018650%203000mAh%20P1830R%20(Black)%202017-Capacity

Very good tracking in the discharge curves.

Keeppower%2018650%203000mAh%20P1830R%20(Black)%202017-Temp-10.0

Keeppower%2018650%203000mAh%20P1830R%20(Black)%202017-Temp-15.0

The cell gets rater hot at 15A

Keeppower%2018650%203000mAh%20P1830R%20(Black)%202017-Temp-20.0

At 20A I stopped the test due to temperature.

Keeppower%2018650%203000mAh%20P1830R%20(Black)%202017-CapacityTimeHours

Keeppower%2018650%203000mAh%20P1830R%20(Black)%202017-CapacityTime

Keeppower%2018650%203000mAh%20P1830R%20(Black)%202017-Energy

Keeppower%2018650%203000mAh%20P1830R%20(Black)%202017-PowerLoadTime

Keeppower%2018650%203000mAh%20P1830R%20(Black)%202017-TripCurrent

This test only goes to 15A and did not trip the build in protection.
Protection will usual trip on 3 conditions: Over current, over charge and over discharge.

Keeppower%2018650%203000mAh%20P1830R%20(Black)%202017-Charge



Conclusion

This is a good cell, but the build in protection do not trip on overload (It will probably trip on higher currents).



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
Compare to 18650 and other batteries

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

tabetha
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Thanks, a godsend to me as looking for some of this size

stephenk
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Thanks for the review. Looks like a good option for lights that require longer button top batteries.

hIKARInoob
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Awesome!

Results are pretty much identical to Enerpower’s VC+3000 cell (low voltage sag PCB).
Interestingly, there is one difference though. At 20A, the Keepower did not trip, and test was aborted due to heat. The Enerpower did trip before getting hot.

This cell is available at NKON for only 8.25 Euro by the way: https://www.nkon.nl/rechargeable/18650-size/keeppower-18650-3000mah-prot...

Thanks for the review HKJ! Cool

light-wolff
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I can tell you the Keeppower won’t even trip at 30A (the limit of my equipment).

Barkuti
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stephenk, or better don't buy lights which force you to use button tops, they're probably hiding some design deficiency (like lack of reverse polarity protection) or plainly wanting to rip you off. This is of course an opinion, not a rule.

 

Cheers Smile

P.S.: this KeepPower rewrap is likely Samsung 30Q based. The battery assembly slightly overheats at 15A continuous, this extra heat arises from the protection circuitry MOSFETs.