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
Suitable for most 12V charging systems- Surge protection. 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.
eBay
Gearzaar 12V 140Amp battery isolator designed for two battery systems, allowing two separate power sources while charging with one alternator. 1 Adjustable Dual Battery Isolator Relay. Adjustable delay function to avoid frequent switching due to unstable current, prolonging battery and isolator life.
eBay
It also protects the vehicle battery from drain when the engine is turned off. Able to switch 30 amp continuously when available from car’s alternator/battery. No separate signal wire necessary. Add to Favourites.
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This allows the charging of a leisure battery from your vehicles starter battery/alternator. Our VSR is dual way to allows power both ways. Continuous current - 140A.
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
Suitable for most 12V charging systems- Surge protection. 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.
eBay