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.

• Fill up to six batteries in seconds from a single fill point
• Fits all 6V lead acid batteries with standard 3-cell spacing
• Eliminates need to remove vent covers to fill
• Automatically sends water to low cells only
• Installs in minutes, no tools required
• Safer and more accurate than conventional filling
• Improves battery life and performance
• Hard to reach batteries are as simple to fill as batteries on a
  workbench

• Several batteries can be connected and filled at the same time
• Automatic shut-off prevents over or under watering
• Simple hand pump operation
• Fill from any point above, at or below battery water level
• Use with any distilled water container
• Quick disconnect feature allows supply to be attached in a snap
• No need to remove vent covers