Quote:
Originally Posted by MikkiJayne
A caravan split-charge relay should do that. They switch on with the voltage rise from the alternator and switch off again when it drops, to only charge the 'van when the engine is running 
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I thought there must be something out there already but it's a difficult thing to 'google' for without a name or use-case. Never towed (or had the desire to tow) a caravan so wouldn't have thought of searching for caravany things.
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Mark
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2002 FE S8 Ebony Black Pearl
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Cars Owned:
The Tesla Era: 2020 Model S Performance Ludicrous+ (present)
(Black, with all black premium interior and carbon fibre décor, 21" sonic carbon twin turbine wheels and FSD capability)
The Audi Era: '97 A8 4.2 (Ming Blue) --> '96 A8 4.2 QS (Dark Green) --> '02 FE S8 (present)
The Citroen Era: '84 BX 1.6 RS --> '89 BX 1.9 DTR Turbo --> '94 XM 2.0L Turbo --> '96 XM 2.0L Turbo Exclusive --> '00 Xantia Activa 2.0L Turbo
The Banger Era: '76 1.2L Lada VAZ-2101 (Ruski Fiat 124) --> '80 1.7L Morris Ital HL, finished in Ermine White and Rust