100 is a low temperature relative to other chemistries. 80% SOC is a good CYA for expensive large packs, but depending on the chemistry you can go higher. Also, the closer you get to the extemes of SOC the more difficult for battery management.
Nevertheless, in the time period I mentioned this was true for LiFePO. Worst thing you could do was charge fully and let the pack get moderately warm/hot. Maybe they have better electrolytes now. On Thu, Jul 9, 2020, 2:19 AM EVDL Administrator via EV <ev@lists.evdl.org> wrote: > On 8 Jul 2020 at 23:39, Michael Ross via EV wrote: > > > Used to be, I am out of touch, that less than 100°F and 100% SOC was a > > recipe for significant battery degradation. > > I thought it was the other way round - that lithium cells at or near 100% > SOC would degrade rapidly at high temperatures. IIRC, the recommendation > was to keep SOC at or below 80% if high temperatures were expected. Do I > have it backwards? > > David Roden, EVDL moderator & general lackey > > To reach me, don't reply to this message; I won't get it. Use my > offlist address here : http://evdl.org/help/index.html#supt > > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > What has allowed so many psychopathic personalities to rise so high > in corporations, and now in government, is that they are so decisive. > Unlike normal people, they are never filled with doubts, for the > simple reason that they cannot care what happens next. > > -- Kurt Vonnegut > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > > _______________________________________________ > 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) > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20200709/685aed0a/attachment.html> _______________________________________________ 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)
