My boat has 3 g31 gel batteries wired together for the house bank. I had an old charger
that wasn't working properly so I went ahead and replaced it. The batteries have been on the charger
for about 24 hours now and the charger (power charger 12/20 from mastervolt) has moved on to the float stage but still appears to be putting out approximately 10 amps. I have an infrared thermometer and checked the temps on the batteries. 2 of them were around 77f but the third is over 140f. Best I can tell is that battery
is from '03, so fairly old, but the other 2 are from 99.
I went ahead and disconnected the hot battery
from the bank. I'm guessing since the other 2 batteries were fine, then the 3rd battery was just faulty? I.e. not something wrong with the charger, which appears to be working just fine. Is there anything else I should be watching out for?