How Long To Charge A 12v Car Battery. Charging the deep cycle battery in a 2-amp charge will take a long time and the discharge time is more than the amp charge. How Long Does It Really Take To Charge A Car Battery.

Consequently when trying to charge a larger battery at that rate it will take a very long time and the battery may discharge at a greater rate than the 2-amp charge can provide. In fully charged condition it will show 138 to 14V in open. Before asking how long it takes to charge a car battery we have to look at the methods designed to make the charging process as quick and smooth as possible.
The first time you charge a new battery it will take significantly longer than subsequent charges.
Double these times if the battery is fully discharged. For example you have a battery with 48-amp storage capacity and its the depth-of-discharge is 100 meaning it is completely discharged dead battery. Charging the deep cycle battery in a 2-amp charge will take a long time and the discharge time is more than the amp charge. 54 amp storage capacity.
