"Jim Wilkins" wrote in message
news

"rangerssuck" wrote in message
...
I think that doing the 20 hour test my provide you with academic
indication of the condition of the batteries, but only at the 20
hour rate. In my recollection (based on 25 years ago designing a 100
station lead acid charger), there is surprisingly little correlation
between capacity at different discharge rates.


I've read that repeated capacity tests on the same battery don't
correlate well.