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=B0 15' N - Elevation 1580')
You are concerned about a .16 v difference between the two?
JK
Normal variance.
This was measured a week after charging - just before charging
---MIKE---
New Hampshire
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.Have something to add? Share your thoughts — no account required.
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