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.
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7m kit The kit includes everything you need for setup dual battery charging system 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.
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1x VSR with fitting hardwares. 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.
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1x VSR with fitting hardwares. For 12V Leisure Battery Capacity up to 220AH. Designed for dual battery systems. IATF16949-2016 Certified.
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Simply connect the relay between your starter battery and leisure battery and the relay takes care of everything, making sure your starter battery is not drained for when you need to get going again.
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The relay is connected between the vehicles main battery (Positive) and the leisure battery (Positive). Both input and output leads have 30 amp fuse holders. It simply connects between the two batteries.
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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.
eBay
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.
eBay