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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54.6V 4A Lithium Battery Smart Charger 13S 48V 4A Charger Li-ion Battery Pack Charger DC-XLR-GX16-GX12-XT60-XT90
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UK Standard 3 Pin Plug Adaptor. Does not require manual disconnection after charging. Wrong polarity and short circuit protection. Bungs (Plugs) are only for transportation use. INHALATION - Remove from exposure, rest and keep warm.
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EN-EL25 Battery Charger Double Slot EN-EL25 Charger for Nikon EN-EL25 ENEL25 EN-EL25a Battery, MH-32 Charger Z30 Z50 Zfc Camera
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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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For Bosch Battery Charger 2A 18V 14.4V Li-ion Battery Charger For BAT609 BAT609G BAT618 BAT618G Charger AL1860CV AL1814CV
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Battery maintainer perfect for charging agm,gel,wet,vrla, sla, deep cycle, mf,efb batteries, lead-acid batteries. Output: 12V. 1 x UK plug. 1 x Battery Clamp Connectors.
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58.8V 2A Lithium Battery Charger 14S 52V 2A Li-ion Battery pack Charger Fast Chargeing XT60-XT90 Power Tool Charger
Aliexpress UK
Output:2A & 10A Max. Batteries Type: All types of 12V Lead Acid Batteries [Standard (Flood Cell) ; AGM ; GEL ; EFB ; MF ; Start Stop ; Calcium (Ca Ca); Silver Calcium etc. Ideal for All Batteries: All types of 12V Lead Acid Batteries [Standard (Flood Cell) ; AGM ; GEL ; EFB ; MF ; Start Stop ; Calcium (Ca Ca); Silver Calcium etc. ].
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iMAX B6 V3 80W 6A Battery Charger Digital RC Charger Lipro Balance Charger Discharger for LiHv Lipo NiMh Li-ion Ni-Cd Battery
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Output: 12V. 1 x UK plug. 1 x Battery Clamp Connectors.
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54.6V 2A Lithium Battery Charger For 13S 48V Li-ion Battery Pack Fast Charging Electric Bicycle Charger Power Tools Charger
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Automatically combines two batteries when charging and isolates the two batteries when not charging, which can widely used in 12v camper van trucks, caravans, and camping applications. When your engine is switched off, the relay will isolate your leisure battery(s) from your main starter battery.
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USB Charger For Sony NP F550 NP-F550 NP-F960 NP-FP50 NP-FH50 NP-FV50 Battery Charger For Sony NP-BN1 BN1 Battery Charger
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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
54.6V 3A Lithium Battery Charger 48V 13S Kugoo G1 Charger High quality Li-ion Battery pack Charger With Connectors
Aliexpress UK