Water levels in lead acid batteries must be checked on a regular basis - a minimum of every 4 to 6 weeks; more in some climates. Improper water levels will shorten battery life and result in poor performance of batteries, equipment, and battery chargers.
Pro-Fill On-Board Battery Watering System, 6-volt RV Edition, provides the most convenient and accurate means of filling and maintaining proper battery water levels. Hard to reach batteries are just as easy to fill as batteries on a workbench. Several batteries can be filled safely and simultaneously from a single remote position without ever having to touch a battery or remove a cap. Pro-Fill’s automatic control valves ensure each cell is closed when the precise level is reached.