Quote:
Originally Posted by canis
I recently read that caravan batteries generally only reach about 80% charge from the car.
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I wonder if that's true or not. There ought to be enough 'headroom' in the car's charging system to top up a caravan's battery whilst the car's on the move. It's no different in reality to a split charge system used in a mobile home,
Quote:
Originally Posted by canis
Giving this more consideration, a thought occured to me today. With self-propelled caravans being so common (i.e. a motor), why don't caravans charge their battery from their wheels (i.e. dynamo)?
I realise the motive power for caravan parking aren't designed to do this, and I realise attempting to utilse them in this way would be insanity.
Okay - forget the motors. But why don't they charge from an alternator or something coupled to a wheel? Either by belt of directly?
It's just an idea. But why not?
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The energy wouldn't come for 'free'; the additional drag created by the alternator in charging the battery would have to be paid for in diesel/petrol by the car dragging the caravan in the first place; in addition to the cost of the alternator and control gear on the caravan.