How do I maintain my battery? Regular battery maintenance can prolong the life of your battery. It's much cheaper to keep your battery well maintained rather than go out and buy a new battery. A few battery tips to keep your battery charged and ready to go are: If your battery is seviceable, check the water level in the battery and keep the water level in the battery at the proper level. Keep the battery clean of any dirt and oil. Keep the battery cable connections free of corrosion. Make sure the battery cables are tight. If the battery is not used for a good length of time, make sure you recharge the battery before use. These battery maintenance tips will help you keep your battery in good working condition.