Look to this Stanley 12-Volt 1-Amp Battery Charger/Maintainer to add power to AGM, GEL and WET automotive and marine batteries. The charger comes with terminal O-rings and battery clamps to allow different charging methods. High-frequency charger is fully automatic and compatible with all AGM, GEL and WET automotive/marine batteries. Terminal O-rings and battery clamps (both included) allow 2 ways to charge. Automatically stops charging if fully charged and switches to float mode monitoring. Provides built-in circuit protection against overcharging, reverse polarity and short circuits. Made with impact-resistant polymer housing that has been sealed to protect against oil and dust. Compact form factor for simple mounting and storage. Backed by the manufacturers 1-year limited warranty. Black for a simple style.