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Re: Anyone starting logging 62kWh battery health data?

Posted: Fri Sep 06, 2019 10:12 am
by DaveinOlyWA
umdkevin wrote:
Fri Sep 06, 2019 9:59 am
umdkevin wrote:
Fri Sep 06, 2019 8:38 am
I've been grabbing LeafSpy data periodically. Here's my battery degradation vice odo trend the last few months with a linear trendline projected.
Image


so anyway... I'll go ahead and continue to keep track and post updated 62 kWh degradation in the future... obviously, represents a single vehicle datapoint.
Yeah, looks like we will be hearing from you around mid Oct. Right on schedule. That is just about when my next adjustment will happen. I am predicting Oct 10th so a few days before yours.

Re: Anyone starting logging 62kWh battery health data?

Posted: Tue Sep 17, 2019 5:02 pm
by BoulderLeaf
umdkevin wrote:
Fri Sep 06, 2019 9:59 am
umdkevin wrote:
Fri Sep 06, 2019 8:38 am
I've been grabbing LeafSpy data periodically. Here's my battery degradation vice odo trend the last few months with a linear trendline projected.
Image


so anyway... I'll go ahead and continue to keep track and post updated 62 kWh degradation in the future... obviously, represents a single vehicle datapoint.
Thank you for the detailed report!

Can I ask where you are located? Do you see significantly high average temps?

Re: Anyone starting logging 62kWh battery health data?

Posted: Wed Sep 18, 2019 2:59 am
by umdkevin
BoulderLeaf wrote:
Tue Sep 17, 2019 5:02 pm
Thank you for the detailed report!

Can I ask where you are located? Do you see significantly high average temps?
Maryland, pretty moderate temps. Not sure we even had a 100 degree day this summer.

Re: Anyone starting logging 62kWh battery health data?

Posted: Mon Nov 18, 2019 8:45 am
by BoulderLeaf
DaveinOlyWA wrote:
Fri Sep 06, 2019 10:12 am
umdkevin wrote:
Fri Sep 06, 2019 9:59 am
umdkevin wrote:
Fri Sep 06, 2019 8:38 am
I've been grabbing LeafSpy data periodically. Here's my battery degradation vice odo trend the last few months with a linear trendline projected.
Image


so anyway... I'll go ahead and continue to keep track and post updated 62 kWh degradation in the future... obviously, represents a single vehicle datapoint.
Yeah, looks like we will be hearing from you around mid Oct. Right on schedule. That is just about when my next adjustment will happen. I am predicting Oct 10th so a few days before yours.
Do with of you have any updates on your battery stats? DaveinOlyWA, did your battery "adjust" as predicted? umdkevin, do you have an updated graph of battery stats? If things continued to progress as they did then I'd expect you to be right at about 96% now.

Thank you both for continuing to report your battery health!

Re: Anyone starting logging 62kWh battery health data?

Posted: Mon Nov 18, 2019 10:36 am
by Daklein
There's some more recent data posted here: 'The 62kWh Battery Topic' viewtopic.php?f=9&t=30585

(I don't know why this thread didn't come up in my search before.)

Re: Anyone starting logging 62kWh battery health data?

Posted: Thu Jul 02, 2020 8:06 am
by DaveinOlyWA
BoulderLeaf wrote:
Mon Nov 18, 2019 8:45 am
DaveinOlyWA wrote:
Fri Sep 06, 2019 10:12 am
umdkevin wrote:
Fri Sep 06, 2019 9:59 am




so anyway... I'll go ahead and continue to keep track and post updated 62 kWh degradation in the future... obviously, represents a single vehicle datapoint.
Yeah, looks like we will be hearing from you around mid Oct. Right on schedule. That is just about when my next adjustment will happen. I am predicting Oct 10th so a few days before yours.
Do with of you have any updates on your battery stats? DaveinOlyWA, did your battery "adjust" as predicted? umdkevin, do you have an updated graph of battery stats? If things continued to progress as they did then I'd expect you to be right at about 96% now.

Thank you both for continuing to report your battery health!
Sorry for late reply but on my 40 kwh LEAF, I did NOT see an adjustment due in October and 5 weeks later, swapped it for my E Plus which has exhibited the same 90 day adjustment pattern.

Unlike the 40 kwh which was consistent with everyone I came in contact with around the world, some are seeing increases on the 2nd or 3rd adjustment. As someone mentioned, the larger pack means losing the same amount of capacity (ahr) but resulting in a lower percentage of the overall pack. I am posting my stats as of this morning in my sig.

Re: Anyone starting logging 62kWh battery health data?

Posted: Thu Jul 02, 2020 8:32 am
by umdkevin
I'm still tracking visually... 4 quarterly adjustments

Image

Re: Anyone starting logging 62kWh battery health data?

Posted: Fri Jul 03, 2020 7:09 am
by DaveinOlyWA
umdkevin wrote:
Thu Jul 02, 2020 8:32 am
I'm still tracking visually... 4 quarterly adjustments

Image
ummm, looks like 5 adjustments; 4 down and one up?

Re: Anyone starting logging 62kWh battery health data?

Posted: Fri Jul 03, 2020 7:57 am
by DougWantsALeaf
I flatten around 92-93% would give the battery a 10% true buffer, which is what I think Nissan is doing. I think this is why in spite of dire predictions, we haven’t seen any 2018s lose s bar yet. We might see that next year though, after the cars fall off the bumper to bumper warranty.

Re: Anyone starting logging 62kWh battery health data?

Posted: Fri Jul 03, 2020 8:50 am
by DaveinOlyWA
DougWantsALeaf wrote:
Fri Jul 03, 2020 7:57 am
I flatten around 92-93% would give the battery a 10% true buffer, which is what I think Nissan is doing. I think this is why in spite of dire predictions, we haven’t seen any 2018s lose s bar yet. We might see that next year though, after the cars fall off the bumper to bumper warranty.
NOT coincidentally; the difference in SOC between the GOM and LS is also about 10%