Peri Hartman via EV wrote:
So the correct conclusion would be, for those cars which have poor winter range, that the cell internal resistance is too low to heat the cell ?
Yes; too little self-heating to be useful.
Also, that the cell voltage is lower during cold temps (while under load), resulting in less Wh ?
The voltage *under load* is lower. You can get few KWH out before it falls too low *under load* to be safe to continue using.
Note that the KWH are all still in there -- you just can't get them out. Think of a bucket of water that's half-frozen. You can only get out the half that isn't frozen. But let it warm up, and the rest of the water is still there.
-- There is a computer disease that anybody who works with computers knows about. It's very serious, and interferes completely with your work. The trouble with computers is that you 'play' with them! (Richard Feynman) -- Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/index.html INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
