How Long Do You Let A Dead Car Battery Charge. How long does it take to charge a dead marine battery. However you dont have to fully charge the battery in order to start the car.
For example if you had a 10-amp battery charger it would take roughly 5- hours to recharge. Get a trickle charger like the battery tender and top off the battery every 2-3 weeks if you dont drive the car much. While the battery is charging make sure that the area is well ventilated to ensure there is no vapor buildup.
A typical electric car 60kWh battery takes just under 8 hours to charge from empty-to-full with a 7kW charging point.
After 5 minutes the dead battery should pick up some voltage to start running. This will bring your battery from 0 charged to 80 charged. You will never have battery issues if you follow this advice. This means that the voltage of the battery is below a functional amount.
