"Gould 0738" wrote in message
...
A fully charged 12 volt battery is
12.6 volts.

13.2

2.2 volts X 6 cells equals 13.2


This is an often debated subject, because it depends on the type of battery,
temperature, aging, etc. In general for lead acid batteries:

Open circuit voltage Charge in %
12.6V and higher 100%
12.4 - 12.6V 75 - 100%
12.2 - 12.4V 50 - 75%
12.0 - 12.2V 25 - 50%
11.7 - 12.0V 0 - 25%
11.7V and less 0%


Eisboch