How Long To Charge 12 Volt Battery At 10 Amps. If its a twelve volt battery I guess it may be a car battery. 10 amps are the recommended current.
A 3-stage automatic charger that is rated at 12 volts 10 amp is the best choice for charging automotive batteries. A 105AH battery will fully recharge from dead in about 10 hours at about 10 amps of charge C10 or about 20 hours at 5 amps of charge C20. A battery charger that provides 6 amps for each hour that it is connected to your battery will be able to charge a 48 amp hour battery in about eight hours.
But due to some losses we may take 12-14 Amperes for batteries charging purpose instead of 12 Amp.
The charger should fully charge the battery in one hour at the 10-amp setting. But due to some losses we may take 12-14 Amperes for batteries charging purpose instead of 12 Amp. The 12-volt smart charger needs to detect a minimum voltage in the battery to begin charging generally 95-105 depending on the manufacturer. Safely connect jumper cables from a running car with a good battery to the fully discharged battery for a few minutes and rev the engine a little to increase amperage.
