Hi,

I finally found a decent supply of batteries and have been processing my 18650’s for a few weeks now.

I have been checking the internal resistance on each battery after it has been fully charged to 4+ volts.

So how much internal resistance is too much?

I have tested some that seem excellent at 75m ohms and 2900 mah, and others that seem bad at 300m ohms and only a 700 mah rating.

I still there a specific point where the IR is too high and the capacity is too low to be considered a good cell or is it gauged by how well the cell charges and discharges?

Please help.
Thanks!

I didn’t find the right answer from the Internet.

References: http://diypowerwalls.com/t-How-Much-Is-Too-Much

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