How do the Lister Startomatic generators work? As I understand it, when you put a load on (by switching on a light or plugging in a kettle) it detects the fact, and electrically starts the diesel engine by the 12v or 24v DC battery. This presumably means it must bias the bus bars with either 12 or 24v DC, but I can see that this would not be very nice for some loads such as transformers. Also there must be some fiendish system to isolate the DC battery from the mains when the thing has started. But the control box seems trivial on those that I've seen pictures of (ebay mainly). Anyone actually know the details?