The Vevor 50W 12V solar battery charger maintainer is designed to keep 12V batteries charged using high-efficiency monocrystalline solar cells. It includes an external MPPT controller for smart charging and battery protection during maintenance use. The IP65-rated design helps it perform reliably outdoors in rain, snow, wind, and sun. This charger is suitable for vehicles and equipment such as cars, RVs, boats, trailers, and lawn mowers. A bracket is not included.