2015: Battery Data Report @ 100% Charge

[Evoforce]

I've lost 7 gids and 3% of the battery on my lizard battery in the last month. Just the same as my 2011 battery also has lost 3% in roughly the same timeframe

Edit: 9/2/2015

It is a week later and both cars have lost another 1% respectively.

 

[Nubo]

Still getting 292 GIDs on our 2015, delivered Oct 2014. Been through some hot weather in the last few weeks, 100F+ on several days. Always charge to 100%.

 

[GotMyleaf]

Are you certain that Nissan didn't give you the old battery chemistry? Based on the recent settlement forcing Nissan to provide the Lizard battery as the replacement for the capacity warranty, they make have given you a refurbished 2011 like they did to me. My degradation on my 'new' battery is the same as my original, but I'm certain that it is not a lizard pack because I got it back in January 2014.

I'm looking forward to seeing 2015 AZ cars' battery performance.

 

[DaveinOlyWA]

Are you certain that Nissan didn't give you the old battery chemistry? Based on the recent settlement forcing Nissan to provide the Lizard battery as the replacement for the capacity warranty, they make have given you a refurbished 2011 like they did to me. My degradation on my 'new' battery is the same as my original, but I'm certain that it is not a lizard pack because I got it back in January 2014.

I'm looking forward to seeing 2015 AZ cars' battery performance.

pretty sure that there were no old chemistry options in Dec 2014 left to use

 

[o00scorpion00o]

I've lost 7 gids and 3% of the battery on my lizard battery in the last month. Just the same as my 2011 battery also has lost 3% in roughly the same timeframe

My gids go up and down. About a month ago I had about 277 gids after a full charge and after fast charging 3 times in a row from 25%-80% my gids are back to 284 and 100% health from 95% health so quick charging seems to actually help keep the battery healthy.

 

[keydiver]

I've lost 7 gids and 3% of the battery on my lizard battery in the last month. Just the same as my 2011 battery also has lost 3% in roughly the same timeframe

The difference is that there are several reports that the 2015 SOH often rebounds after several charges, whereas 2011/2012 SOH always continues to degrade, so I wouldn't be concerned yet. Its just one datapoint, check back in a month. I find that the biggest problem with having a tool like LeafSpy is that too much data can just give you more anxiety.

 

[o00scorpion00o]

I've lost 7 gids and 3% of the battery on my lizard battery in the last month. Just the same as my 2011 battery also has lost 3% in roughly the same timeframe

The difference is that there are several reports that the 2015 SOH often rebounds after several charges, whereas 2011/2012 SOH always continues to degrade, so I wouldn't be concerned yet. Its just one datapoint, check back in a month. I find that the biggest problem with having a tool like LeafSpy is that too much data can just give you more anxiety.

Posted in anther thread.

"I presume not many people are aware of the 2013 U.K Taxi with 102,000 miles and lost only 10% ? the title says 12% loss but it shows 10% ? .

http://insideevs.com/100000-mile-nissan-leaf-taxi-shows-12-5-battery-degradation/

Now look at an Irish 2012 Leaf that lost 11% after 62,000 Miles and only 458 quick charges on the 2012 Irish Leaf V 1,788 on the 2013 U.K Leaf.

If you look near the end of the blog he posts the leaf spy data there somewhere.

https://selfficiency.wordpress.com/automotive/nissan-leaf-diary/#comment-1216

Both climates are not hot particularly the Irish climate.

So I think this only proves there was a change to the battery chemistry in July (I meant to say July 2013+ ) built Leafs . I think this is a fantastic achievement for Nissan on a small battery that's cycled so much with so many Quick charges."

 

[Evoforce]

Are you certain that Nissan didn't give you the old battery chemistry? Based on the recent settlement forcing Nissan to provide the Lizard battery as the replacement for the capacity warranty, they make have given you a refurbished 2011 like they did to me. My degradation on my 'new' battery is the same as my original, but I'm certain that it is not a lizard pack because I got it back in January 2014.

I'm looking forward to seeing 2015 AZ cars' battery performance.

It is absolutely the new chemistry. And the extra bracket had to be installed to accommodate it.

 

[Bufordleaf]

Just an update on my battery stats at 100% charge. My Leaf is a 2015 S with QC delivered 12/20/2014. Have now made it through one hot summer in the Georgia sun with little apparent degredation.

Mileage 7847
GIDs 287
kWh 22.2
SOC 96.0
SOH 100
Hx 97.22
AHr 63.09
Avg Temp 83.9
# of QCs 28

 

[minispeed]

Update, 13 month old 2015 Leaf SV with 27K miles (43k km) with now over 1000 charges (not all full) got it on July 25 2014, checked it was made 05/2014.


Nov 3 '14: KM - 11 962, Soh - 100%, Charges - 11 QC 256 L1/L2, Gidds - 289, kWh - 22.4, Soc - 96.4%, Hx - 101.94%, Ahr - 64.38
Jan 17 '15: KM - 19 338, Soh - 100%, Charges - 38 QC 453 L1/L2, Gidds - 292, kWh - 22.6, Soc - 97.2%, Hx - 108.32%, Ahr - 64.38
Mar 31 '15: KM - 26 786, Soh - 100%, Charges - 65 QC 647 L1/L2, Gidds - 292, kWh - 22.6, Soc - 97.1%, Hx - 111.18%, Ahr - 64.38
June 25 '15: KM - 36 038, Soh - 100%, Charges - 67 QC 814 L1/L2, Gidds - 292, kWh - 22.6, Soc - 97.4, Hx - 99.62, Ahr - 64.38 / 62.68
Aug 31 '15: KM - 43441, Soh - 99%, Charges - 90 QC 939 L1/L2, Gidds - 291, kWh - 22.6, Soc - 97.5, Hx - 95.40%, Ahr - 61.73 / 60.19

It's been pretty hot here so I'm interested to see if it will bounce back up to 100%/292 when it cools down.

 

[tkdbrusco]

Most recent 100% charge on my 2015 Leaf S with 16,400mi, mfg 4/14

288 GIDS
22.32 kwh
97.13% SOC
92.42% SOH
94.57% HX
61.23 Ahr
79.5 F

Stoked on these numbers, especially considering my mfg date, unlike most 2015 cars, mine has been through two CA summers now, spending the first one sitting on a dealer lot.

As others have correctly stated, the SOH bounces around a bit. My guess is that it is an estimate based on charging habits and usage.

My typical charging pattern is as follows, my wife charges at work to 100%, plugging in after lunch to avoid it sitting on a high SOC for long periods of time, gets home with roughly 70%, runs a few errands around town, leaves the next morning with about 60%, and plugs in after lunch again with approx 30% remaining. It seems to like being cycled through like this and I've seen now evidence that 80% charges are of benefit to the Lizard pack, which is great because the charge times on the S model sucks.

 

[Evoforce]

I've lost 7 gids and 3% of the battery on my lizard battery in the last month. Just the same as my 2011 battery also has lost 3% in roughly the same timeframe

Edit: 9/2/2015

It is a week later and both cars have lost another 1% respectively.

Both still having same losses

 

[Nubo]

...Stoked on these numbers, especially considering my mfg date, unlike most 2015 cars, mine has been through two CA summers now, spending the first one sitting on a dealer lot.

 

[tkdbrusco]

I don't really get your above post?

 

[Nubo]

I don't really get your above post?

It refers to the show "Mythbusters". They take technical assertions and "urban myths" and devise experiments to test them. At the end they evaluate the results and the myth is labelled either "CONFIRMED", "BUSTED", OR "PLAUSIBLE".

 

[LeafMuranoDriver]

My stats have increased over the first 1,000 miles...

Date: 6/14/2015
Mfg: 01/2015 Pur: 05/2015
Mileage: 1,048
4 QC & 22 L1/L2s

GIDs: 287 (101.4%)
kWh: 22.2
SOC: 97.4%
SOH: 98%
Hx: 94.38%
AHr: 60.95

Stats kept going up until around 1,400 miles, stayed the same till about 2,300 miles but the last month while trying to only charge to 70-80%, now charging to 100% for the first time, my stats have gone down to when it was new.

Date: 6/27/15
Mfg: 01/2015 Pur: 05/2015
Mileage: 1,416
4 QC & 29 L1/L2s

GIDs: 292 (100%)
kWh: 22.6
SOC: 97.4%
SOH: 100%
Hx: 97.24%
AHr: 63.11
---------------------------------------------
Date: 8/10/2015
Mfg: 01/2015 Pur: 05/2015
Mileage: 2,384
8 QC & 51 L1/L2s

GIDs: 292 (100%)
kWh: 22.6
SOC: 97.5%
SOH: 99%
Hx: 95.61%
AHr: 61.86
---------------------------------------------
Date: 9/4/2015
Mfg: 01/2015 Pur: 05/2015
Mileage: 2,815
8 QC & 62 L1/L2s

GIDs: 284 (97.3%)
kWh: 22.0
SOC: 97.4%
SOH: 99%
Hx: 92.84%
AHr: 60.19

The only thing I've been doing differently is not charging to 100% like I did for the first 4 months I owned the car and the summer heat. Definitely a surprise to me when I thought it was doing well and thinking changing to charging to only 70-80% in the summer would benefit it. Maybe it hurt instead?

 

[DaveEV]

Maybe it hurt instead?

The numbers can fluctuate a lot depending on how the car is driven on the '13+ LEAFs. I wouldn't worry about it. I bet if you go back to 100% charging for a week the numbers will bounce back. If you QC, it will bounce back even more. Just keep in mind that you aren't actually gaining capacity if this happens - the car just thinks that the battery is improving.

Keeping the SOC lower on average will only help retain capacity, for sure it will not hurt.

 

[tkdbrusco]

I've found the biggest impact on total GIDS is temperature and charging patterns (well other than degradation). I found that charging to 80% did noting to benefit my pack. However, during the winter the highest I would get would be 284, since June I've been at 288. Also I've found that you get a true measurement of max GIDS if you charge up to 100% a few days in a row. Honestly I wouldn't stress over it. There's been 2015s on the road for over a year now and I don't think we've seen a single car much lower than 280. The packs are doing very well and we will all likely get close to 40-60K miles, perhaps more, before losing a bar. In fact I think there's very few 2013 or newer cars that have even lost their first bar at this point. My goal has always been to sell my Leaf after 3 years when we can buy a Tesla Model 3, but at this point my thinking is that my Leaf will still have 90% of its capacity and a lot of life left.

 

[Nhinman]

Posting my 2015 data for the second time. This is after making it through most of the summer and adding some more miles and a lot of charges.

Date: 09/06/2015
Mileage: 7005
1 QC & 217 L1/L2 's

GIDS: 291
Kwh: 22.6
SOC: 97%
SOH: 99%
Hx: 95.81%
Ahr: 60.10
Avg Battery Temp: 85.6 F

This looks pretty much the same as when I posted it back in January with just a couple of thousand miles, except the average battery temp is higher.

Could someone tell me again - in simple terms - what the SOH and Hx are??

 

[minispeed]

Well that didn't take long....
Going to work at 430am today and it was nice and cool and fully charged, back up to 292 gids 100% soh and 63.90/62.14 ahr

Update, 13 month old 2015 Leaf SV with 27K miles (43k km) with now over 1000 charges (not all full) got it on July 25 2014, checked it was made 05/2014.


Nov 3 '14: KM - 11 962, Soh - 100%, Charges - 11 QC 256 L1/L2, Gidds - 289, kWh - 22.4, Soc - 96.4%, Hx - 101.94%, Ahr - 64.38
Jan 17 '15: KM - 19 338, Soh - 100%, Charges - 38 QC 453 L1/L2, Gidds - 292, kWh - 22.6, Soc - 97.2%, Hx - 108.32%, Ahr - 64.38
Mar 31 '15: KM - 26 786, Soh - 100%, Charges - 65 QC 647 L1/L2, Gidds - 292, kWh - 22.6, Soc - 97.1%, Hx - 111.18%, Ahr - 64.38
June 25 '15: KM - 36 038, Soh - 100%, Charges - 67 QC 814 L1/L2, Gidds - 292, kWh - 22.6, Soc - 97.4, Hx - 99.62, Ahr - 64.38 / 62.68
Aug 31 '15: KM - 43441, Soh - 99%, Charges - 90 QC 939 L1/L2, Gidds - 291, kWh - 22.6, Soc - 97.5, Hx - 95.40%, Ahr - 61.73 / 60.19

It's been pretty hot here so I'm interested to see if it will bounce back up to 100%/292 when it cools down.