Yes, Zeke is correct. One of the big problems is that voltage substantially varies with temperature, health of the pack, and how recently the pack has been charged/discharged. This is why all reasonable Battery Management Systems (BMS) do coulomb counting to determine SoC.
On Tue, Mar 12, 2024 at 8:04 AM Zeke Yewdall via EV <ev@lists.evdl.org> wrote: > I am not sure about the leaf batteries in particular, but my experience > with lithium batteries in general is that voltage cannot be used to > determine SOC for most of the range between 20% and 90% SOC. The curve is > just too flat to be meaningful. Above 90% and below 20% it gets steeper > and may give some useful info. > > > > On Mon, Mar 11, 2024 at 9:15 PM EV List Lackey via EV <ev@lists.evdl.org> > wrote: > > > On 11 Mar 2024 at 20:14, redscooter via EV wrote: > > > > > can someone make a spreadsheet > > > > What's your budget? Maybe you could hire a skilled contractor through a > > "microtask" website. > > > > 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 > > > > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > > > > Endless loop: See loop, endless. > > > > Loop, endless: See endless loop. > > > > -- Stan Kelly-Bootle, "The Devil's DP Dictionary" > > > > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > > > > _______________________________________________ > > Address messages to ev@lists.evdl.org > > No other addresses in TO and CC fields > > HELP: http://www.evdl.org/help/ > > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20240312/a426bdca/attachment.htm > > > _______________________________________________ > Address messages to ev@lists.evdl.org > No other addresses in TO and CC fields > HELP: http://www.evdl.org/help/ > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20240312/00cc5108/attachment.htm> _______________________________________________ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
