... Free Lead-Acid Battery Charge for autos.CAUTION : lead acid battery 1.Avoid short circuit, 2. Risk of fire,explosion, or burn,3.Do not charge in ... a sealed container 4.Do not charge in a sealed container, 5.Keep the battery dry,ventilative,cool, 6 ... ,7.Handle with care to protect the battery terminal, 8.Make regular examination and use it in the valid date, 9.Do not recharge ...