Ain't hurt none.

I hooked an automatic charger to a battery on a pontoon boat at a slip at the
marina expecting it to cut off when the battery was fully charged. I didn't
realize the battery was low on water. It wouldn't fully charge due to the low
water level and the charger wouldn't cut off because the battery wasn't
charged. I came back about a week later and could smell the battery from the
parking lot. I put water in it, charged it some more and used it for about
another year and sold the boat.

Mark McCoybr
McCoy's Market Bumpus Mills, Tennesseebr
http://www.mccoysmarket.com