On Tue, Jan 14, 2014 at 10:25 PM, Thos True <[email protected]> wrote: > Yep, on the Leaf, the salesman will tell you to only charge it to 80%, not > realizing that the factory parameters are already set to 20%@empty (0% on > gauge) and 80% (100% on gauge), thereby having the newbie charging the car > to about 70%!
The LEAF lets you use about 92% of the full capacity of the pack, a lot more than 80%. 80% (long-life charge) is actually about 80% in true SOC. 100% is actually about 95% in true SOC, and it appears that Nissan has been squeezing a bit more voltage on the '13 LEAFs on a 100% charge than the '11-12 LEAFs - around 4.11-4.13V where the '11-12 would top out around 4.09-4.11V. The LEAF will go into turtle mode when the lowest cell hits a resting voltage of 3.0V - there's only a bit more than 3% left at that point. The rumor is that Nissan wasn't seeing much of a difference in real-life rate of capacity loss when comparing LEAFs who charge to 80% vs 100%. Hard to say when Nissan is so tight lipped about real-life rate of capacity loss and as far as I'm aware, no one has run any controlled tests on the LEAF's battery. I suppose now that one can easily get used modules off eBay someone might spend the $500 to test a handful of modules under various conditions if they wanted. Personally, the lack of regenerative braking above a 80% charge is reason enough to stop charging at 80% unless you really need the extra ~14 miles of range a 100% charge gets you (on a new LEAF, anyway - only good for about 10 extra miles now on my nearly 3-yo LEAF). -Dave _______________________________________________ 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)
