Charge it. Batteries need to be maintained. There are caps on top ( unless it's a maintainence free battery, of which they are then throw away). Pop the caps off. Inside you put Demineralized water. ( not tap water or purified water, but demineralized). You can get this in like a milk jug at a grocery store like Safeway ect. Fill the cavities right up. Pop the caps back on. And charge and away you go. ( wash your hands after, it is a batterie after all).