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
Dual Battery Isolators also feature surge protection and a L.E.D indicator designed to alert the user when the unit is engaged. When your engine is switched off, the relay will isolate your leisure battery(s) from your main starter battery.
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The dual battery insulator can automatically combine two batteries when charging and isolate them when no charging takes place to ensure efficient power use. When your engine is switched off, the relay will isolate your leisure battery(s) from your main starter battery.
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40A Relay makes at 13.3 volts and breaks at 12.65 volts. 12 volt 140 amp with red LED indicator. Allows split charging of second battery bank without discharging the primary/start battery. Sold by Digger Parts Direct.
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Amperage: 140A. ANS-H fuse box: 2 pieces. Heat shrink tubing: 6 pieces + 1 black heat shrink tube. ANS fuse links: 2 x 40A square head, 2 x 50A square head, 2 x 60A square head. Suitable for: Providing power to any land or marine vehicle, including ATVs, boats, cars, light trucks, trucks, RVs, and yachts, etc.
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
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