Establish the charger to 12 V/ 2 amps and allow the battery cost for 36 hours. After, utilize your voltmeter and make sure it reads between 12.43 V and 12.6 V before you test it. You'll start by warming four cups of distilled water, after that pour it right into a tidy pail. Next off, put around 4 ounces of Epsom salts into the water and stir until