How Long To Charge A Car Battery At 12 Amps. If its a twelve volt battery I guess it may be a car battery. If you need to estimate the car battery amps to figure out how long you need to charge it or what range of battery amp ratings you should buy new then look at the amps hours CA and CCA indicators.
063 12 Volts 45ah Heavy Duty Car Battery With 4 Year. Doing the math you will see that it takes about 16 hours for a 160 AH battery to be fully charged. Ad Be Sure You Have The Starting Power Your Vehicle Needs.
That is the Ah Ampere hour figure.
This means that it can deliver 1 amp per 48 hours or 2 amps in 24 hours 8 amps in 6 hours and so on. For example if you had a 50 amp hour battery and a 5 amp charger it would probably take you about 10 to 12 hours to fully charge that battery from a completely dead state of charge. The different components you use while your car is in operation will increase the number of amps you need for the car. Should you want a quick rule of thumb the normal capacity of car batteries will vary from 550 to 1000 amps.
