30W 12V Solar Panel Battery Charger Maintainer - Built-in MPPT Charge Controller + Adjustable Mount Brackets + SAE Cable Kits for Boat Marine RV Trailer Automotive Car Home Off Grid System

30watt 12volt solar battery charger pro was designed to charge battery and maintain the 12v battery by converting sunshine into usable 12v current, keep it topped off at a stable level.The solar battery maintainer was built-in advance MPPT charge controller chip and improved three-stage charging algorithm, to regulate whole charging and protect battery.Come with quick SAE connector, plug and play, easy & simply to connect and disconnect. And 3 optional cable adapters for ring terminals, alligator clips, and cigarette lighter. It works great with car, automotive, truck, SUV, RV, boat, Trailer, marine, motor home, roofs, sheds, garages where a 12V battery is applied, sure to be a great fit to your application needs.The adjustable mount brackets make it possible to easily adjust the angle among 0-15-30-45-60 degree, hlep the solar panel absorbs maximum sunshine and generates more power.The LED indicator help to visually monitor the working status and understand battery condition: Blink Green-solar output is normal; Blink Red-working to charge battery; Solid Green-battery is full; Solid Red-Errors like short circuit, reversed polarity.