Absolutely no danger of overheating or overcharging. Leave it connected for months at a time if necessary. 12-Volt, 1.5-Amp. Charger automatically switches to Float Mode when fully charged. Designed to charge AGM, sealed maintenance-free, lead calcium and flooded batteries. Manufacturer recommends checking battery fluid monthly. California Energy Commission approved.. Four-step charging program: Initialization, Bulk Charge, Absorption Mode and Float Mode. Spark proof. Temperature compensated. Short circuit and reverse polarity protected. 72-hour safety timer. Five-year manufacturer's warranty. Battery Tender Plus 12V HE
