I'm not sure what true SOC the Leaf charges to and calls 100% but on my
2016 Kia Soul EV+ 100% on the display corresponds to 95% from the BMS. The
two displays agree at 25% SOC and below that the display SOC is lower than
actual. If the relationship is linear then 0% SOC on the display is about
Recalibration: that sounds like a breach of contract on Nissan's behalf.
To be positive, overall I think Nissan has done a great job. But in this
case, I'd fight back. When you by a leaf, you sign a contract and
recalibrating the way the battery is measured sounds cleanly like a case
Not dynamically, just a one-time upgrade (dealer visit required).
Many Leaf owners who lost the 4th bar and thought they qualified for the
warranty battery replacement were miffed to see the dealer really
enforcing the Nissan requirement that the warranty will only be honored
That's what happens when you use LifP04 cells. You never know when a cell
will go south for no reason. I have about 75 customers including my own
conversions using NEW Volt cells and have NEVER had a bad cell in over 5
years. Who else can say that. Cannot vouch for those who buy used batteries
On Tue, Oct 4, 2016 at 10:12 AM, Mark Hanson via EV wrote:
> 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
On 10/04/2016 12:29 PM, Cor van de Water via EV wrote:
on the battery as the Leaf *does* degrade its battery by 40% to approx
60% capacity in approx 50k mi in warmer climates (that is the point
where Nissan gives a warranty battery replacement, even though they
promised 70% but re-calibated the
The EPA calculated the Leaf range based on the average of charging to
80% and 100%. Totally crazy, because anybody needing max range would
charge to 100% but that was why Nissan removed the 80% option, even
though customers wanted to keep it. I always charge to 80% to be gentle
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 :-).
Sent from my
Yeah, I don’t know why they would change their recommendation; people might
have been complaining about the limited range when only charging to 80-90%.
> On Oct 4, 2016, at 10:12 AM, Mark Hanson wrote:
> Thanks Corbin
> If that's the case I wonder why Nissan
If the 2014 LEAF really became OK to fully charge to 100%, that may have
been based on performance monitoring of the 2013 batteries not showing
degradation when charged to 100%. And that would imply that it may also
be OK to charge the 2013 to 100% regularly.
Or it may
Are you sure the 2013 cells were the same chemistry? I thought they were the
older spinel type, not NMC.
Anyway, worst case for decreasing cell life is high voltage and high
temperature as shown by Dahn and other researchers, so most manufacturers
recommend not charging to 100% SoC regularly. I
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
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
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