This issue does illustrate one of the lesser appreciated advantages of a comprehensive BMMS - ie one that monitors cell temperature. Most that do this use a temp sensor attached to the cell-top BMMS PCBs (printed circuit boards) and so are reasonably well placed to give a acceptable idea of the cell temperature. Thus, charging when too cold can be avoided - the 'system' could even provide some heat before trying again.
Don't forget, of course, that the very act of charging will raise the cell temperature to a degree dependant on the rate of charging. So, they keep themselves warm, to an extent. MW On 6 Jan 2014, at 15:58, Michael Ross wrote: > David, please do elaborate - I have a cell charging in the garage and the > temps will be dropping throughout the day. _______________________________________________ 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)
