Battery Tender, or a low amp charger of any brand, is your friend, imo...
I use it constantly on my stable, and use an appliance timer for a twice
a week charge, when plugged in for a long duration. Works w/zero problems.
GL, mD

__________________
Ol'UncleMotor
From the Home Base of Pro Bono Punditry
and 50 Cent Opins...

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