£47 each .The Durite 0-727-33 Split Charge Relay is a 12V 140A voltage-sensitive relay designed for campers. With a length of 68mm, this electromechanical device ensures efficient power distribution in caravan and motorhome systems. This product, manufactured by Durite, is an essential component for managing electrical systems in recreational vehicles, providing reliable and convenient functionality for users on the go.
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Waterproof Relay DC 12V 100A Relay SPDT 5 Pin Relay Car Heavy Duty Split Charge Waterproof Transparent Case
Aliexpress UK
【EASY TO INSTALL&USE】 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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3m Ready Made Split Charge Relay Kit 12v 140 AMP VSR 110Amp Lead T4 T5 For Caravan Camper Boats Voltage Sensing Relays
Aliexpress UK
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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Split Charge Relay 12V 140A 140 AMP 0-727-33 Portable Power Voltage Sensitive
Aliexpress UK
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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3m/5m/7m Split Charge Relay Kits Ready Made Leads 12V 140A Voltage Senstive VSR Camper Van
Aliexpress UK
We are an approved Durite UK Distributor. Allows split charging of second battery bank without discharging the primary/start battery, relay makes at 13.3 volts and breaks at 12.65 volt. 12 volt 140 amp.
eBay
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.
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