Right, for a possible highly secret forthcoming winter trip I don't think the R100RS standard alternator 230W is going to cut the mustard, even with HID lights fitted. I see 3rd party upgrades for some 0. Eeek. Is it possible to have an OE armature rewound to produce more power? This is an area I've never considered before. And if so who would do it. I'm more than slightly tempted to run a small car alternator off the sidecar wheel feeding the 75Ah FOAD 2nd battery living in the boot space.