How Long Charge Car Battery 2 Amps. Larger chargers may be used to decrease charge time but may decrease battery life. So when you are charging a battery at 2 amps then it takes 24 hours for the battery to receive 48 amps of charge.
Thus a 100 ah battery would take about a 25 amp charger or less. How Long Does It Take To Charge A Car Battery With Jumper Cables. Using a 2 amp charger on a 48 amp battery takes 24 hours to charge from empty.
A three-stage or smart charger is recommended for the best results.
Basically this denotes how long a battery will last if it isnt recharged. Generally it will take 2 to 4 hours to fully charge a car battery with a 20 Amp battery charger and 12 to 24 hours with a 4 Amp charger. Aside from jump starting the fastest but not always the most efficient method you can also consider using a reliable car battery charger. Using a 2 amp charger will take you quite a long time to charge your car battery at an acceptable level.
