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Old 08-21-2003 | 08:26 PM
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Red Scholefield
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Default Update on Lithium poly testing

Originally posted by wfssr
Hi Red & Greg
I am new to Li-Poly batteries and would like to know if you have information on the Kokam 640HD and the 1200HC.
I am using these batteries at 5C and having capacity problems. I am getting approx 350ma from the 640HDs and 500ma from the 1200HCs. What am I doing wrong?

Will
What cut off voltage are you using. I just looked at the data on the 1500s (have not tested 640 or 1200) and at 5C to 2.7 volts we are getting an average of 97% of 0.2C capacity. Same for recent batch of 700 mAh cells. On the 340 mAh cells at 6C we saw 98% of the 0.2C capacity. 10 cells in each test batch. All charging done with Kokam Lipo 402.