12V 140 Amp Dual Battery Isolator - Voltage Sensitive Relay VSR Double Automatic Battery Charging Relays

1. Purpose - This dual battery isolator is designed to charge and isolate two battery systems. It's like having two separate power sources for each battery while charging by one alternator. Never worry about stuck on road due to drained battery

2. Working Voltage - Voltage Sensitive Relay (VSR) cuts in at 13.3 volts and cuts out at 12.8 volts to ensure your primary battery is always charged and ready to start your vehicle. The secondary battery will be charged after the primary battery's volts reach 13.3V

3. Sturdy & Durable - IP65 waterproof rating, strengthened nylon shell with silicone sealed interior, which is water resistant, shock resistant, dust proof, work well in extreme weather environments. Also provides the ultimate vibration protection on rugged terrain

4. Easy to Install - 140 Amp Dual Battery Isolator comes with mounting plate and all hardware you need to complete installation, save your time and money

5. Wide Compatibility - Compact size 2.6" x 2.6" x 2.1" can be installed almost anywhere. Fit for your marine boats, truck, RV, UTV, van, off-road vehicles

Package Includes:
1x 140 Amp battery isolator
1x red battery cable
1x black ground battery cable
2x positive battery terminal
1x negative battery terminal
2x insulated blue ring terminal
4x self tapping screw
2x M6 nut
2x M6 spring washer