⭐GOOLOO auto battery charger keeps your 6 Volt and 12 Volt batteries at optimal capacity. GOOLOO automotive battery trickle charger has built in auto-memory which will return to the last charge mode when connected. Made of high quality materials, this smart car battery charger and maintainer owns multiple safety protection. And equipped with unique design makes it perfect for seasonal vehicles usage, such as for cars, motorcycles, trucks (small), lawn mowers, boat, RV, SUV, ATVs and so on. ⭐GOOLOO 6Amp 6V and 12V 6A Smart Portable Automatic Battery Charger, Battery Maintainer Trickle Charger