I posted a question in the newsgroup "rec.boats" about recharging a lead-acid battery for an electric boat motor after returning from a boating/fishing trip. The original question was about whether it's okay to leave the battery charger on for a few days to a week. I found out that, unless I have the more modern automatic type of battery charger, that is a bad idea -- due to overcharging the battery.
Then someone suggested just plugging the battery charger into a timer and setting the timer to turn the power off to the battery charger after say 12 hours.
My question now is,
"If I do the timer idea, could the fact that the battery charger will still be set to "ON", and will still be connected to the battery after the timer cuts power to the battery charger, cause the battery to discharge and drain back through the battery charger?"
I tried a Google search but didn't find too much info that I could use.