How Long To Charge A Car Battery At 1.5 Amps. The amount of amps used is up to the owner but common amp chargers are 15 or 2 to top off or maintain or 4-6 amps to charge a battery. For example a 1C battery needs one hour at 100 A to load 100 Ah.

Measurement should be performed on not loaded disconnected from the electrical system of the car battery. Great Big Guru Dawg. Hooked up to 15 amp Craftsman float charger.
So how to calculate how long a battery will last.
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. The amount of amps used is up to the owner but common amp chargers are 15 or 2 to top off or maintain or 4-6 amps to charge a battery. The normal charge rate is between 1 and 15 amps. Ad Visit Your Local Quick Lane to Get Your Vehicle Battery Conveniently Charged.

