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 <cor...@corbinstreehouse.com> 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 <ev@lists.evdl.org> 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
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