PAC PAC500 Water Resistant 500 Amp Relay/Battery Isolator

Used to isolate a second battery powering audio, visual navigation, or other equipment
Prevents the equipment from discharging the main battery when it is operated while the engine is off
Handles 500 amps continuous and 700 amp surges
The coil will operate safely up to 16.5 volts
Useful for completely isolating equipment from power when off
Relay coil draws less than one amp when on
Switching power must be 10 to 16 VDC
Retail $149.95