30W Solar Battery Charger 12 Volt with Upgrade Charging Algorithm for Boat Car RV Motorcycle Marine Automotive. Built-in charging microprocessor, and the charging algorithm has been improved to convert more light energy into battery energy, increasing the charging efficiency by at least 20%. Also works perfectly if you live in area with lots of cloud or shorter daylight hours. The solar battery charger 12 volt has a nominal output and a reverse charge blocking diode for safety, with overcharge protection and over-discharge protection to keep both you and your battery as safe as possible. As a solar trickle charger and maintainer for different 12V DC batteries including Gel, MF, Wet, EFB, and AGM.A variety of scenarios for RV, boat, car, marine, camper, lawnmower, motorcycle, jet ski, shed, water pump, gate opener, etc. And with LED charge indicator. It will light up whenever the battery is receiving charge. Any product you return must be in the same condition you received it and in the original packaging. We usually respond within 24 hours on weekdays. Thank you for shopping at our store. This item is in the category "Home & Garden\Home Improvement\Electrical Supplies\Alternative Energy Supplies\Solar Power Supplies\Solar Panels & Kits". The seller is "mansucah_0" and is located in this country: US. This item can be shipped to United States.