Re: How long should I charge the batteries Message #2 Posted by Bill (Smithville, NJ) on 5 Nov 2003, 1:49 p.m., in response to message #1 by Arnaud Amiel
I've always used the following for NiCds:
(1.5) times (battery capacity) divided by (charger capacity) = hours
Assuming the HP-45 charger is 50 ma, then
1.5 x 450 / 50 = 13.5 hours
1.5 x 650 / 50 = 19.5 hours
So, 20 hours should be about right.
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