Battery Doc Instant Tester

A push of a button tells you if your battery is weak or fully charged. Simply attach the ring terminals directly onto your battery. If a charge is needed, attach a Battery Doc® Charger directly to the tester for a simple tool free connection. Comes with peel and stick velcro for easy mounting directly on or near your battery. Reverse Polarity protected. 18” lead comes with 3 Amp fuse.