Charge gel cell with car charger?
Mike Cook wrote:
A friend has a battery powered Ryobi lawn trimmer ("weed whacker") which
doesn't work. The 12vdc wall wart puts out only ~ 12.4v.
In or out of circuit? If the thing doesn't have any filter caps, the
out of circuit reading will be low.
I charged the lead-acid gel cell using a car charger. The charge rate
(selectable) was 0.5A. Afterward the trimmer seemed to work as new.
Can the car charger be used to charge this battery? He can install a timer to
limit charge time if that's something required.
Thanks.
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