How Long To Charge A 12v Marine Battery. How long to Charge a Car Battery at 2 amps. This will bring your battery from 0 charged to 80 charged.
A highly discharged battery may take up to 12 hours for it to be fully charged. Solar panels charge 12V batteries and might have a voltage of 20V with no battery in the circuit but are engineered to provide their power at the voltage a 12V battery requires for full charging. Check the charger to see what kind of battery types it can handle.
Charging your car battery with a 2 amp car battery charger will take a reasonably long time up to 24 hours to reach an acceptable charge this is determined by the fact that your car battery is usually 48 amps and it takes about 1 amp charge.
Always before charging a battery in using the charger is best to refer to the manual that came with both the battery and the charger. This differs significantly from charging lithium batteries and their constant current stage and constant voltage stage. The damage when the battery goes below 50 is minimal and as long as you never let it go below 30 the battery will still be able to hold a decent amount of charge for a long time. Occasionally there are equalization and maintenance stages for lead acid batteries as well.
