There may have been a good reason for not storing lead acid batteries on concrete in the distant past but that is not true for lead acid batteries today.
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Originally Posted by Normal
I’ve had zero problems doing trickle charges on dead batteries. The charger I have does high charge, standard charge and trickle charging. I bought it about 10 years ago for around 50 dollars at Autozone.
Just make sure to keep lead acid batteries off concrete floors because they will discharge. If you need to take the battery out, make sure to place it on a block of wood or something insulated from your garage floor. Trickle charging is only recommended for batteries that are completely dead. You basically are bringing the battery back up to life slowly so it will hold a charge. The method doesn’t work with Lithium type batteries. Gell Cells, Nickle Cads and lead acid batteries can all be trickle charged.
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