But all batteries wear out because lead flakes off the
plates and collects in the bottom of a standard lead/acid
battery [that's why the plates do not extend all the way to
the bottom of the case, the space is there to collect lead
sludge. When the sludge touches the plates they short out
and the cell is dead.]

Would it make sense to periodically drain the sludge and refill with
fresh water?

Jose
--
Money: what you need when you run out of brains.
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