Establish the charger to 12 V/ 2 amps and let the battery charge for 36 hours. After, use your voltmeter and make sure it reads in between 12.43 V and 12.6 V prior to you check it. You'll start by warming 4 mugs of distilled water, then put it right into a clean bucket. Next, put about four ounces of Epsom salts right into the water and mix up unti