On 18 October 2014 11:02, Trevor Hancock wrote: > > We've got a car full of them http://users.adam.com.au/marick/ > http://www.evalbum.com/3765 > It has travelled 40000 Km on these cells. > In a few short months it will have travelled more EV Kms than petrol. ...= .. Trevor That's utterly superb. I'll be back with (many) more questions. And I'll take you up on your kind offer of logged data. Most appreciated. Just rushing out ... . Even in what you said there are some useful leads. eg no float is what I know from small LiFePO4 but not what suppliers or manufacturers tend to say for large ones. Nicely documented and a marvellously net and tidy installation. Uses only unleaded mains power I see :-). What brand / model / Ah are the cells? 40,000km/50 km =3D 800 cycles? Russell --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .