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Old 02-14-2023, 02:47 PM   #15 (permalink)
mort
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Quote:
Originally Posted by redpoint5 View Post
Anyone have a methodology to test capacity that doesn't involve deeply discharging the battery? Perhaps target a 75% voltage as the discharge cutt-off and extrapolate capacity from that?
You need one of these:

https://a.co/d/e43GuED

It measures the AC internal impedance of the battery and computes the capacity from that.
Many AutoZone stores have something similar and will test your battery free, I expect you'll need to be extra friendly to test 18, and not buy anything.
-m
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