Keeps your battery fully charged and maintained to extend battery life. Monitoring circuitry automatically turns... see moreKeeps your battery fully charged and maintained to extend battery life. Monitoring circuitry automatically turns charger on & off as needed. Fully protected against overcharging, short circuits, and reverse polarity. Features red/green LED indicator light status. Includes both clamp and fused ring-terminal connection adapters. Works on all 6 or 12 volt lead-acid Wet/AGM/Gel batteries. Plug charger it into any 110 volt socket, connect to your battery, and forget about it!