Two-unit battery charger and maintainer set for 12V lead-acid batteries - Restore and maintain 12V lead-acid batteries including flooded and sealed maintenance batteries such as AGM and gel - Wide compatibility for charging and maintaining a range of vehicles and equipment - Suitable for boats, motorcycles, ATVs, and riding mowers - Also maintains car, truck, SUV, and RV batteries to restore or preserve performance - Three-stage charging for safe, efficient care - Bulk Charge for fast charging - Absorption Mode for full activation without overheating - Float Mode for maintaining a full charge - Safe operation and easy use - Secure battery clamps and plug-in operation - Protects against short circuits, overcurrent, overheating, high-voltage spikes, and low-voltage dropouts for reliable maintenance What you get and how it helps - Set includes two compatible chargers for simultaneous or individual use, making it easy to manage multiple batteries or keep a vehicle ready for use - Maintains battery health during storage and between uses, reducing sulfation and performance loss Use scenarios - Spring boat prep: reconnect and restore a marine 12V battery after winter storage, then maintain it to ensure ready-to-use performance for the first trip - Seasonal vehicle care: keep car, motorcycle, or ATV batteries healthy during long periods of inactivity or storage, preventing hard starts when you need them - RV and riding mower upkeep: maintain RV or riding mower batteries between trips or seasons, ensuring reliable starting power and longer battery life