Will A Completely Dead Battery Charge. Heres how to charge a dead car battery. Leave it unplugged for now.

1 Check that the charger is not powered. It takes up to 24 hours to fully recharge a completely dead battery. If that does not seem to work however car battery chargers can regenerate all of the charge into a battery.
Ideally a 60 Ah car battery takes 30 hours with 2 amps.
If so then unplug it. If you are taking 15 amps then it takes 4-5 hours to charge it completely. Continue doing so for a few minutes. If that does not seem to work however car battery chargers can regenerate all of the charge into a battery.

