Thanks Corbin If that's the case I wonder why Nissan dropped the less than 100% requirement from the newer 2014 and up vehicles? I guess I don't understand why fully charging and equalizing the cells would hurt battery life. Maybe just a hang on from the lead days :-). Mark
Sent from my iPhone > On Oct 4, 2016, at 10:25 AM, Corbin Dunn <[email protected]> wrote: > > Lithium cells (of all chemistries) seem to have the fastest degradation when > they are charged to 100% on a regular basis. The general consensus is to keep > it in the 20-90% range. This is also what Tesla recommends for the Model S / > X. > > I’ve also been charging my LiFEPo4 cells in my VW bug to 100% on a regular > (near daily) basis. I’ve had a few cells prematurely die; like loosing 30-40% > capacity (200Ah thunder skys). The others seem “okay”, but some are dipping > lower in voltage under load, and probably have lost some capacity; I’ve been > charging them up a bit with a single cell charger, as balancing at the top > seems too rough on the cells. I’ve also got about the same mileage: 46,000. > > corbin > > >> On Oct 4, 2016, at 7:19 AM, Mark Hanson via EV <[email protected]> wrote: >> >> Hi folks >> In my 2013 leaf manual it says to not fully charge each cycle and only to 80 >> percent is preferred but in 2014 it became ok to fully charge. The >> chemistry is the same NMC nickel manganese cobalt cathode with a lithium >> electrolyte and a graphite anode. So did Nissan get it wrong? Is it ok to >> plug it in on short 15 mile trips each time? I do that on my Ghia that has >> 45k miles on LiFePo4 batteries and still ok equalize on each charge with >> balancers like the Leaf does. >> Best regards >> Mark Hanson >> >> 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) > _______________________________________________ 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)
