Morgans" wrote:
I have always heard that if you have a battery out of the (whatever)
vehicle for the winter, or while it is the shop, if you sit the battery on
a concrete floor, that will kill the battery, possibly for good.

If this is true, why?

on Woellhaf wrote:
I believe it's false.

My mechanic said it is absolutely true, and said to always put a piece
of wood or thick cardboard down first if you have to set it down on a
concrete floor for any length of time.