K2 Energy & Tenergy LFP123A quick check

[aznsx]

In case anyone's interested, I recently capacity tested some of my K2 LFP123A cells, and some NOS Tenergy ones as well. I used SkyRC MC3000, with discharge current of .5A, and a discharge cutoff of 2.5V (which is appropriate for LFP). I would like to see test numbers on the Surefire version, but have none to test. Clearly all LFP123s are not 'created equal';-)

K2:
Cell #1 476 mAh
Cell #2 493
Cell #3 496
Cell #4 498

Tenergy:
Cell #1 381 mAh
Cell #2 383
Cell #3 370
Cell #4 372

 

[aznsx]

I tested a fresh new pair (after one break-in cycle) of the current Surefire LFP123 cells under same conditions / parameters as the other two, and added the capacity measurements for those 2 cells here:

K2:
Cell #1 476 mAh
Cell #2 493
Cell #3 496
Cell #4 498

Tenergy:
Cell #1 381 mAh
Cell #2 383
Cell #3 370
Cell #4 372

Surefire:
Cell #1 444 mAh
Cell #2 464 mAh