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Dave Plowman (News) Dave Plowman (News) is offline
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Default When is a lead-acid battery charged?

In article , Andrew Gabriel
wrote:
In article , "Dave Plowman (News)"
writes:
In article , Fredxx
wrote:
I have known good lead-acid batteries keep their charge for nearly a
year, but it's rare.


According to an expert on another group the average lead acid car
battery loses 60% of its charge per month. I'm only quoting this FWIW
as it's not my experience. I have a clever electronic battery tester
which works out the actual capacity and that shows nearer 20% per
month.


Sounds far too high to me, unless it includes the quiescent drain.


Me too. But he came out with all sorts of lab tests to prove it. Makes no
difference - I've been using them long enough to know he's wrong.

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*I was once a millionaire but my mom gave away my baseball cards

Dave Plowman London SW
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