Remember when your batteries were always fully charged. Stay ready to roll with the WEN 12V Deluxe Battery Maintainer and Float Charger. Designed for lead-acid (including AGM), gel, or lithium-ion 12V-nominal batteries with a rated capacity of up to 125Ah, there's not much this compact powerhouse can't handle. It easily connects to your 12V car, motorcycle, boat, ATV, snowmobile, or generator battery, and automatically keeps it fully charged, trickle charging or float charging as needed to keep it in peak condition. The perfect companion for vehicles in long-term storage, portable generators, sump-pump backup batteries, and more, the charger features a color-coded LED to indicate when the battery is charging, near fully charged, fully charged, and any errors. The connector cables also include a 7.5A automotive blade-type fuse for built-in protection against defective batteries that might draw too much current. This deluxe set includes built-in reverse-polarity and short-circuit protection, an AC adapter, an alligator clip connector set, a ring terminal connector set, and SAE quick-connectors for direct connections (check polarity first). Remember when your batteries were in tip-top shape. Remember WEN.