How Long For Dead Car Battery To Charge. After 5 minutes the dead battery should pick up some voltage to start running. You can do this for about an hour before raising the charging amperage.
If the battery was completely dead it may take up to 24 hours to charge fully. Most car batteries which are in good condition will last at least two weeks without needing you to start the car and drive to recharge it according to the AA. Here is how long it takes to charge a car battery.
But if you dont intend to drive your car for some.
Turning on lights and other consumers should cause the. 3 to 6 hours 20 Amp charger. The amount of time it would take to charge would depend on the type of battery charger. Depending on the age of your battery the capacity and construction of the charger and the charging technique used it may take a few hours to reach a complete charge.
