Set the battery charger to 12 V/ 2 amps and allow the battery cost for 36 hours. After, utilize your voltmeter and make certain it checks out in between 12.43 V and 12.6 V before you test it. You'll start by warming up 4 cups of distilled water, then put it right into a clean bucket. Next off, put about four ounces of Epsom salts right into the wat