Test/review of Keeppower IMR18650 NH1826 2600mAh (Black) 2016

Batteries and Chargers Rechargeable Batteries
1

Keeppower IMR18650 NH1826 2600mAh (Black) 2016







Official specifications:

  • Nominal capacity: 2600mAh

  • Minimum capacity: 2500mAh

  • Nominal voltage: 3.70V

  • Charge voltage: 4.20V 0/-0.05V

  • Standard discharge cut-off: 2.50V

  • Standard charge current: 1000mA

  • Charge current cut-off: 50mA

  • Max. Constant discharge current: 30A

  • Max. Pulse discharge current: 60A




A very high current 18650 cell.










The two cells tracks nicely and can deliver a lot of current.







At 30A they did get too hot and I had to stop the discharge a some seconds before the cell was empty. The cells did reach 93°C after I terminated the discharge.















Conclusion

This is very good high current cells. The very high current capability means the cells are a bit below top capacity.



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
Compare to 18650 and other batteries
2

I’m unable too lazy to grab the screencap, but it looks like other cells like Sony VTC6 outperform this in both capacity and amp draw - hopefully the Keeppower are less expensive, otherwise there’s not much point…

Your info is invaluable HJK. Thanks!

3

Been watching this battery for some time, now I’m assured that this is good battery.
Thanks HKJ!

4

This cell should be a re-wrapped one of Sony VTC5, since their discharge curves track nicely.

5

Oh yeah, yes - very similar. Could definitely be true, good observation.

6

Thanks once more for a very informative review HKJ! :+1:

7

Μία καλή μπαταρία VTC5.

Δέν είναι παράξενο.

Η KP χρησιμοποιεί πάντα σωστές μπαταρίες και αυτός είναι ο λόγος που έχει τόσο καλό όνομα .

8

Edited translation in english: