Using the DeWalt DCB230 battery is a breeze. Just insert it into any compatible DEWALT 20V MAX* power tool and you're ready to go. When you want to know how much charge is left, just look at the 3 - LED fuel gauge. As for maintenance, store it in a cool and dry place. Don't expose it to extreme temperatures as this can affect its performance. Also, try to fully charge and discharge it regularly to keep it in good shape. Remember, this battery has no memory effect, so you don't have to worry about fully draining it before recharging. Keep it away from water and other liquids, and if you notice any damage, stop using it immediately and contact the manufacturer.