Set the charger to 12 V/ 2 amps and allow the battery fee for 36 hours. After, use your voltmeter and ensure it reads between 12.43 V and 12.6 V prior to you check it. You'll start by heating four mugs of pure water, then pour it right into a tidy container. Next, pour around four ounces of Epsom salts into the water and mix till the water is clear