Durable steel brush
High-impact, plastic case will not corrode
External brush to clean battery terminals
Internal brush to clean battery post

Use with a drill to easily clean stud terminal batteries
Hollow center slides easily over studs to clean contact

Use with a drill to easily clean side terminal batteries
Center brush cleans threads on side terminals
Outer brush cleans terminal contact

Use with drill to clean top post batteries in seconds
Cleans tops and sides of post

Makes adding water to batteries a breeze
Automatically stops when appropriate water level is reached
Simple to use, Never over fill again