How Long Does A Flat Car Battery Take To Charge. Using a car battery to run a fridge will reduce the life of the battery and it will eventually fail. A 15 amp trickle charger can charge a 50 discharged small car battery 200-315 CCA or RC 40-60 in about 15 to 19 hours a mid-sized battery 315-550 CCA or RC 60-85 in 19 to 25 hours or a large car battery 550-1000 CCA or RC 85-190 in 24 to 46 hours.
The charge is constant and does not vary based on a timer or the current charge of the battery. Trickle charging This is when a battery charger supplies a low current charge. Check water levels before this.
Charging a car battery fully with a 12 volt charger will take around 12 to 24 hours depending on the situation.
To run a fridge use a deep cycle battery. To boost your battery enough to be able to start the engine it would take around 2-4 hours. Charging a car battery 4 things to remember. Since the battery sometimes gets hot during recharging so you need to stop charging it for some time until it gets to a normal temperature to start charging again.
