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.
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SSR 10VA 25VA 40VA Solid State Relay Voltage Regulator 24-380V AC Output with Potentiometer 10A 25A
Aliexpress UK
The relay is connected between the vehicles main battery (Positive) and the leisure battery (Positive). It simply connects between the two batteries. The most important part of the circuit are the fuses!
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Tuya eWeLink WiFi Smart Circuit Breaker MCB 1P+N 63A Time Relay Switch Energy Meter kWh Voltage
Aliexpress UK
It simply connects between the two batteries. The relay is connected between the vehicles main battery (Positive) and the leisure battery (Positive). Permanent live output (a live feed via relay from main battery + generally never used).
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2P 63A TUYA APP WiFi Smart Circuit Earth Leakage Over Under Voltage Protector Relay Device Switch
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.
eBay
2P 63A Tuya WiFi Smart Earth Leakage Over Under Voltage Protector Relay Device Switch Breaker Energy
Aliexpress UK
The relay cuts in at 13.3V and breaks (cuts out) at 12.8V, allowing split charging of a second battery bank without discharging the primary or start battery. Maintains battery isolation when not charging, so starter cannot be drained by leisure use and vice-versa.
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2P 63A TUYA APP WiFi Smart Circuit Earth Leakage Over Under Voltage Protector Relay Device Switch
Aliexpress UK
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A30-U3 DC Voltage Relay 6-80V48V60V 30A Detection Control Delay Switch Interval Action
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.
eBay
Single-Phase Fully Isolated AC Voltage Regulating Module SCR Power Regulator Solid State Relay
Aliexpress UK
Dual Battery Isolators also feature surge protection and a L.E.D indicator designed to alert the user when the unit is engaged. - Suitable for most 12V charging systems- Surge protection. When your engine is switched off, the relay will isolate your leisure battery(s) from your main starter battery.
eBay
Rele 12V Relay Solid State SSR Module 5V 24Vdc Voltage 24V Relè Switch Relé 12 V 3V Reley Contactor
Aliexpress UK