The presentation at the link below indicates capacity is relatively unaffected down to 15C (59F) and also fairly independent of discharge rate (pages 7, 8):
http://www.cse.anl.gov/us-china-workshop-2011/pdfs/batteries/LiFePO4%20battery%20performances%20testing%20for%20BMS.pdf I keep mine heated to 65F in winter while parked at home so that they remain above ~ 50F even if parked outside for 5 hours or so at about 25F ambient (boxes have 1/2" insulation). -- View this message in context: http://electric-vehicle-discussion-list.413529.n4.nabble.com/Range-tp4665484p4665724.html Sent from the Electric Vehicle Discussion List mailing list archive at Nabble.com. _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)