CHARGE AND MAINTAIN: 12V / 6V 1.5A Battery Charger for 6 volt and 12 volt SLA / VRLA / GEL / AGM / WET Lead Acid batteries | WIDELY COMPATIBLE: Battery maintainer chargers for automotive, motorcycles, automobile, lawn tractor, riding lawn mower, ATVs, RVs, watercraft, powersport, scooter, snowmobiles, camper, trolling motor, boats, etc | SAFE AND SECURE: Certified by ETL, The automatic smart trickle battery charger tender suitable for charging and maintaining Lead Acid batteries automatically, protection against short circuit, over voltage, over current, over charge, overload, overheat and reverse polarity | 4 STAGE FULLY-AUTOMATIC CHARGING: This is not just a trickle charger, it's also an advanced battery maintainer. Complete 4-step charging program (Initialization, Bulk Charge, Absorption Mode, Float Mode). Trickle Charger automatically switches to float mode after fully charging the battery | WHAT YOU GET: 6 Volt / 12Volt automatic smart trickle battery charger