YES!!!
due to flow of electrons the batteries become warm when they are charged
They really don't recharge, you might get a little more life from them if they sit, also remove batteries from flashlights when not in use. Best bet is to replace batteries. Batteries that are kept in the cold have warm to room temperature before working.
how Can you charge multiple 12 volt batteries with a car?
No, it is not necessary to disconnect the batteries.
Yes, if the batteries are rechargeable
The pad can charge as many batteries as it is destined to charge. Most pads charge about 4 batteries at a time.
NO!
Batteries importance is in their inherent capability to store an electric charge.
Batteries charge nothing they hold a charge.
if they are rechargeble batteries then yes you can but they wont stay charged for that long
I am sorry, but I think that this is impossible. It must have batteries to function.
False assumption.
they don't i have left batteries on concrete for months and had on loss of charge.