Discussion in 'Tech/Mech General' started by Road Runner, Dec 23, 2007.
At what voltage is a 12 volt battery flat and full please?
Some one will probably come on and criticise, but my ubderstanding is as follows;
12.7 v or over is fully charged
12 v or less is Flat.
test is best done after the battery has stood for a while as tired batteries will lose slowly without use.
More or less correct..
Excellent Jim great help
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