I've built an Arduino battery cycle tester!

[Vortex99]

Fast and easiest method: Im planning use cheap ebay capacity tester.
With arduino i can detect its output leds and charge (with 2$ DC-DC cc regulator)/discharge automatically. And use old android phone to take picture every min or so to dropbox.
Why many years no-one test cycle life of various cells here? Really interesting to know how long various cells last.
My cycle tests coming soon:
NCR18650B
18650PF
25R
GA
NC1
MJ1
US18650NC1
ICR18650-26J
LG 18650-B4
Samsung 18650-13L

electricbike 25r cycle test here stopped no reason

I have interest in this test Samsung 18650-13L..I have a vectrix motocycle with a samsung 18650 - 13L 49ah 6.5kwh..

 

[jonescg]

If you can send me a few new cells I can cycle them as often as you like. Maximum discharge is about 20 amps before I need a beefier contactor.

 

[Vortex99]

the cells are already mounted in the pack .. it's not possible send them to you