The Cat CBC10 gives you convenient, automatic charging for your 6-volt and 12-volt AGM, GEL, or WET batteries, plus LiFePO4 (lithium iron phosphate) batteries. This handy unit with its easy-to-read LCD screen directly clamps to the battery and functions as a battery charger, maintainer, and trickle charger. Its fully automatic high-frequency charging restores lost battery performance for stronger engine starts and extended battery life. The built-in circuit protection guards against overcharging and reverse polarity. The battery maintainer function keeps your vehicle battery charged while not in use for maximum performance. It is ruggedly constructed with an impact-resistant polymer housing.