How Long To Charge Leisure Battery. Some will charge at about 01C C is the battery capacity so in your case 01C is 125A. You really should never discharge a battery that far so a guess on my figures would be 5 hours.
But theres lots of far more sophisticated battery monitoring systems available on the market too. An average size 12v 50Ah car battery discharged 20 will take 2 hours to charge using a 100 watt solar panel. It measures the voltage at the battery terminals.
So how long should a leisure battery provide power.
Some charge at 02-03C some AGM and deep cycle I believe and at the other end of the scale some LiFePO4 can charge at 3C. However havent needed it for the van. What matters is the total power produced by the panel as well as the voltage. Both examples assume a current of 575 amps and MPPT controller.
