Test/review of Keeppower 18650 2600mAh P1826R (Black) 2017

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HKJ
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Test/review of Keeppower 18650 2600mAh P1826R (Black) 2017

Keeppower 18650 2600mAh P1826R (Black) 2017

DSC_2621

Official specifications:


  • Part No.: P1826R
  • Protected 18650 Li-ion Rechargeable Battery
  • Minimum Capacity: 2500mAh
  • Typical Capacity: 2600mAh
  • 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%202600mAh%20P1826R%20(Black)%202017-info

This is high current protected batteries with moderate capacity.

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DSC_2622DSC_2623

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Keeppower%2018650%202600mAh%20P1826R%20(Black)%202017-Capacity

The discharge curves looks very good with perfect tracking.

Keeppower%2018650%202600mAh%20P1826R%20(Black)%202017-Temp-10.0

Keeppower%2018650%202600mAh%20P1826R%20(Black)%202017-Temp-15.0

Keeppower%2018650%202600mAh%20P1826R%20(Black)%202017-CapacityTimeHours

Keeppower%2018650%202600mAh%20P1826R%20(Black)%202017-CapacityTime

Keeppower%2018650%202600mAh%20P1826R%20(Black)%202017-Energy

Keeppower%2018650%202600mAh%20P1826R%20(Black)%202017-PowerLoadTime

Keeppower%2018650%202600mAh%20P1826R%20(Black)%202017-TripCurrent

The protection trips above 15A, but below 20A, I could not do 20A discharge curves.

Keeppower%2018650%202600mAh%20P1826R%20(Black)%202017-Charge



Conclusion

This is a good battery and with the protection there is no risk over over discharging the battery.



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/

mrheosuper
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could you take out the wrapping to see what is its cell ?

Forgot my pen

HKJ
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mrheosuper wrote:
could you take out the wrapping to see what is its cell ?

When the manufacturer do not provide the original cell name, I will not spoil it for them, but others are welcome to check my comparator for a match and post it here (Remember that the high current traces will be lower due to the resistance of the protection)

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

the4ds9
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Where can I purchase the Keeppower P1826R battery? The one listed on Illumn.com is the Samsung ICR18650-26F

shadockan
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mrheosuper wrote:
could you take out the wrapping to see what is its cell ?

Sony Konion US 18650 VTC5 2600mAh 20A

Look at the Lygte Battery Comparator from Henrik

the4ds9
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That is wonderful. It means the Jetbeam TH20’s supplied cell may well be a Protected VTC5. This cell was the choice of top modders before the VTC5A was introduced. Nice! So exciting! Silly