What I see is that Leaf reports 80% real Soc as 80% (end of my default charging) and 100% charging is in reality around 90% SOC according to LeafSpy (it varies a bit where LeafSpy reports it, apparently charging speed and temperature play factors also) Then at the low end, the Leaf cutoff is somewhere between 10-15% real SoC which is already after the lowest bar has been blinking and the Turtle has come one, reducing motor output to make you go charge *now* as well as protect the battery, while still allowing you to exit the road safely. I have never taken it below the last bar blinking and 6 mile range estimate which is about 20% real SoC. So, I say that charging to 80% with the Leaf has merit in reduced deterioration.
Cor van de Water Chief Scientist Proxim Wireless office +1 408 383 7626 Skype: cor_van_de_water XoIP +31 87 784 1130 private: cvandewater.info http://www.proxim.com This email message (including any attachments) contains confidential and proprietary information of Proxim Wireless Corporation. If you received this message in error, please delete it and notify the sender. Any unauthorized use, disclosure, distribution, or copying of any part of this message is prohibited. -----Original Message----- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of Peri Hartman via EV Sent: Thursday, October 06, 2016 7:51 AM To: Electric Vehicle Discussion List Subject: Re: [EVDL] Best charge rate for longevity This still doesn't make sense, at least to me. If charging to 100% per end-user instrumentation is actually 80%, then why would one ever refrain from charging to 100%? Yet, some people say one should charge only to 80% per instrumentation. If the only reason Nissan provided the 80% charge cut-off is to reduce "customer error factor" (I forget what that means), then it seems rather pointless. Peri ------ Original Message ------ From: "Thos True via EV" <ev@lists.evdl.org> To: "Mark Hanson" <mhan...@hughes.net>; "Electric Vehicle Discussion List" <ev@lists.evdl.org> Sent: 06-Oct-16 7:38:14 AM Subject: Re: [EVDL] Best charge rate for longevity >Rush and All, > >I agree that the information can be quite confusing. I tried my best to >make it clear that what the engineer told me. >It was that 0% on the instrumentation is about 20% in the pack, and >that >100% on the instrumentation is about 80% in the pack. Thjis was the >best >that they could do to remove the customer error factor in the charging >protocol. >If you charge it to 80% per the instrumentation, it will not hurt your >pack, but you will of course experience lower range because you are not >charging to the full potential. > >Hope this helps to clear things up some, > >-Tom > > >On Wed, Oct 5, 2016 at 1:34 PM, Mark Hanson via EV <ev@lists.evdl.org> >wrote: > >> Thanks folks >> >> So if the Leaf charges at the 100% setting to 4.12vpc and 80% to >>4.05vpc >> and battery university says max life of 2k cycles is at 4.00vpc then >>I >> should change my charge cut off at 80% for daily short trips of 15 >>miles >> typical. Plus since balancing occurs all the time there's no need to >> charge at 100% except for long trips >> Best regards >> Mark >> Sent from my iPhone >> _______________________________________________ >> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >> http://lists.evdl.org/listinfo.cgi/ev-evdl.org >> Read EVAngel's EV News at http://evdl.org/evln/ >> Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/ >> group/NEDRA) >> >> > > >-- >Remember, it is not that the glass is half empty, in reality, the glass >is >merely twice the size that it needs to be! -TNT'82 >-------------- next part -------------- >An HTML attachment was scrubbed... >URL: ><http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20161006/9e7 67492/attachment.htm> >_______________________________________________ >UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >http://lists.evdl.org/listinfo.cgi/ev-evdl.org >Read EVAngel's EV News at http://evdl.org/evln/ >Please discuss EV drag racing at NEDRA >(http://groups.yahoo.com/group/NEDRA) > > _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA) _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
