How Long To Charge Battery After Jump Start. A battery that needs a jump-start whether it needs to be replaced or not is nowhere near a full state of charge. Then after a jumpstart you should be good to go.

On the other hand with jump start you can charge your battery much faster than the battery chargers as it gives a quick surge of power and charge to the car battery. Period of recharging the car battery after. Ask Question Asked 6 years 6 months ago.
The jump-starter is there to provide a quick burst of power.
I had to jump start it I let it run for a few minutes and then drove it for 20km in a mixture of city and highway. If you turn it off soon it wont charge the battery which. Charging battery after a jump start. Volts without amps cant create a magnetic field.
