When your engine is switched off, the relay will isolate your leisure battery(s) from your main starter battery. So it does not drain your main starter battery and you will always be able to start your vehicle.
Please note: The 3 mtrs of Red cable supplied in this kit are made up of the 4 separate leads which is ready made with connectors&heat shrink tubes. The kit includes everything you need for setup dual battery charging system. 12v 140amp Intelligent Voltage sense Split Charge Relay. 2 x 250mm RED 70amp READY MADE cable from Battery to fuse holder lead. 1 x 500mm RED 70amp READY MADE cable Relay to fuse holder lead.
1 x 2 metre 70amp Relay to fuse holder READY MADE Lead. 1 metre 70amp of READY MADE Black Earth Lead. 1 Pair 8mm Post Type Battery Terminals. 2 x MTA MIDI Fuse holders. 4 x 60A MTA MIDI Fuses including 2 spares. Red&Black Heat shrink to protect all the connections. 10 x adhesive cable tie fixings base to keep everything tidy. Easy to understand Fitting Instructions + after sales support if required.We appreciate your business and strived to improve our customer service and our commitment to quality.