The Gun-J has been designed to fill NiCad batteries quickly, easily and accurately. Simply connect it to your water supply - Deioniser, Gravity Tank, HydroFill or, if the mains water meets battery water quality standards, a hose direct from the tap. When the battery is full and the Gun-J automatically shuts off to prevent over-filling and flooding the batteries. 

The highest quality components are used throughout the Gun-J to prevent cracks and water leakage commonly found with other connectors whilst the 'Gun' handle and trigger operation are proven to be the most ergonomic option for hose connections.

The low-pressure connectors such as the Gun-J should never be used with Water Injectors.