VMAXTANKS BC1204 12V 3.3 Amp 4-Stage Automatic Smart Battery Charger and Maintainer 7Ah-60Ah AGM, GEL or SLA 12 Volt Battery Charger LED indicator lights show charging status and battery level 4-Stage Microprocessor Controlled Battery Smart Charger / Maintainer Easy to use, plug it in and forget it! Charge, maintain and restore your car, bike, atv, boat, scooter, suv, or truck's 12V battery Smart Charger / Maintainer for AGM, GEL, SLA, FLA 12 Volt for Car Solar Marine Trolling Auto Scooter Wheelchair and other 12V Batteries