On Mar 15, 7:21*pm, (---MIKE---) wrote:
I have two car type batteries that I have in my basement. *One is to
start my generator and the other is a spare. *I charge them once a week
at 1.5A for three hours. *I check the voltage before charging. *One of
them usually reads 12.60 volts and the other 12.76 volts. *I checked the
acid level on the 12.76 volt one and it is OK. *Why would it read so
high?

* * * * * * * * * ---MIKE---In the White Mountains of New Hampshire

* (44° 15' *N - Elevation 1580')

You dont need but to charge them every few months , charge them to
13.3v not 12.76 , a discharged batter is ruined quickly by sulfation.
12.76 is maybe 80% charged. Some chargers can be adjusted if you open
them up.