Smarter than a trickle charger, our 3 AMP will fully recharge and maintain your battery. Get a quicker charge on automotive, marine, and powersport batteries with this everyday charger which is compatible with 6 Volt and 12 Volt AGM, flooded and gel batteries. STAY CHARGED The powerful 3 AMP charger provides a full charge to your automotive vehicle’s battery before automatically going into float mode to maintain proper voltage levels without overcharging.  CONNECT AND FORGET With a low maintenance design, our universal vehicle charger and maintainer is compact, lightweight, and easy to operate even in small storage space for your convenience.    MONITOR POWER LEVELS Two LED lights indicate the charging status and if the battery voltage drops too far under load, ISM adaptive charging will resume full charger output power.    SAFE AND SECURE Spark-proof during lead connection and automatically detects reverse polarity to ensure a correct, locked-in connection before providing power.     VERSATILITY Compatible with lead-acid, flooded, lithium or sealed maintenance free batteries (AGM and gel cell), this charger works with 6 volt and 12 volt batteries with the push of a button California Residents WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov