Now it was time to focus on what's inside.
Another ordering session left me with a split charge system, a rally spec battery tray and a boxful of electrical parts. Time to sort out power.
The split charge system is simple but quite smart. A relay monitors the voltage of the vehicle battery (the one that starts the engine), if this exceeds a threshold the relay changes over and the alternator now charges the leisure battery in the rear of the van. This means that anything plugged into the leisure battery system will not drain the vehicle battery, so the van will always have enough charge to start.
I've tested this quite often during the 2010 winter and it works perfectly.
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