Samlex BGW-60 Waterproof Battery Guard - 60 Amps [BGW-60]BGW 60 Waterproof Battery Guard 60 Amps The Battery Guard Waterproof BGW 60 is an intelligent, user programmable, fully waterproof battery guard. The battery guard prevents the excessive discharge of the battery (which would damage the battery) and protects electronic appliances against overvoltage. Includes Automatic Board System Detection, the BG automatically detects the battery voltage (12 or 24V). The battery guard is capable of carrying 60A