Post Your Battery Degradation Results

[Valdemar]

Update to my numbers for my 3/2013 build & buy SV:

AHr: 62.04
SOH: 94%
Hx: 96.62
ODO: 36,486 miles
QCs: 0
L1/L2: 2461

Wow! Amazing stats for a '13 with 36k miles.

For SoCal. Probably nothing special for Boston.

 

[bradbissell]

Gids are 273 at 100%. I didn't have that data when I posted. Overall, I'm pretty happy with the LEAF battery degradation, but I do know that the rate has been slower because of the "cold" weather in the Boston area. I only wish I had a larger battery so I didn't have to worry about the effects of winter on range.

 

[yujungchang]

Lost the 2nd bar couple weeks ago ...

34k miles
AHr: 51.58
SOH: 78%
Hx: 60.88%
QC: 130
L1/L2: 1440

 

[Evoforce]

Happy Thanksgiving!


9 Bar Car now at 8 bars! ************************************************

SOC 96.7%
SOH 63%
AHr 41.79%
HX 42.44%
GIDs 181
391.78V
odo 37,453 mi
21 QC & 1239 L1/L2



Lizard Car *************************************************************

SOC 90.6%
SOH 92%
AHr 58.74%
Hx 87.30%
GIDs 250
394.30V
odo 29,155 mi

(Lizard car) has lost 8% while (8 Bar Car) has also lost 8% In the same calendar time frame. This will probably be the last comparison stats because 8 Bar Car now qualifies for a new battery.

In my many months of head to head comparison, both the original 2011 battery and the 2015 lizard battery in the 2nd car, have degraded at identical levels in the same relative conditions with the lizard battery having traveled roughly about 4,400 less miles. Not the results that I wanted to see.

Edit: As of 1/20/16 8 bar car now has a new lizard battery. The 2nd car that already has a lizard battery ended up degrading 11% for the year. In comparison, the car with the original battery only degraded 8% and drove around 1400 more miles. I can no longer track lizard to original as both cars are now lizard. I will however be tracking lizard v lizard.

 

[RonDawg]

I posted this over at "Lost a Bar" thread but my 2012 SV lost its first bar just last week after 34-1/2 months and 26,435 miles. 8/12 manufacture, leased 1/13.

LeafStat numbers after 100% charge:
230 gids
93.18% SOC
83.39% SOH
69.49% HX
55.25 Ahr
76.2F avg battery temp

No QC's (doesn't have the port) and for the first 2-1/2 years it was mostly charged only to 80% and garaged both at home and at work. After getting a new car it was kept outside and charged to 100% 2-3x a week to keep the car-swapping in the garage to a minimum.

 

[DiamondDan73]

Sept 1 38,950 mi AHr 42.94 SOH 65% Hx 58.77%
Sept 2 38,950 mi AHr 50.80 SOH 65% Hx 58.58%
Oct 1 40,900 mi AHr 45.66 SOH 69% Hx 49.02%
Nov 1 43,183 mi AHr 44.31 SOH 67% Hx 46.58%
Dec 1 45,050 mi AHr 44.12 SOH 67% Hx 46.26

Getting 185-188 GID's on a full charge.

 

[memoryisram]

Very disappointing to see battery degradation on my barely 6 month old lizard pack. I had it replaced in the SoCal desert, then moved to the colder bay area. Was hoping the colder climate and my OCD attention to best charging practices would keep this pack in tip top shape but I think it doesn't seem to matter. It's starting it's slow decline.

Replaced in Jun 2015:

AHr: 66.54
SOH: 100%
Hx: 101%

Stats today Dec 2015:

AHr: 62.45
SOH: 96%
Hx: 93.83%

Average battery temp is 60F right now which is good considering we are having 40F nights here. I've done maybe 10 QC total since the replacement, all L1 in my garage or public L2s to top off.

Maybe I need to discharge to VLBW and charge up again to heat up the batteries a bit and see if the numbers change.

I've got a dealer in the area that is interested in it as a trade in because of the new battery pack. Might have to take him up on the offer and get myself an ICE vehicle that I won't have to worry about it being useless again in a year or two. This battery anxiety is for the birds.

 

[Evoforce]

Very disappointing to see battery degradation on my barely 6 month old lizard pack. I had it replaced in the SoCal desert, then moved to the colder bay area. Was hoping the colder climate and my OCD attention to best charging practices would keep this pack in tip top shape but I think it doesn't seem to matter. It's starting it's slow decline.

Replaced in Jun 2015:

AHr: 66.54
SOH: 100%
Hx: 101%

Stats today Dec 2015:

AHr: 62.45
SOH: 96%
Hx: 93.83%

Average battery temp is 60F right now which is good considering we are having 40F nights here. I've done maybe 10 QC total since the replacement, all L1 in my garage or public L2s to top off.

Maybe I need to discharge to VLBW and charge up again to heat up the batteries a bit and see if the numbers change.

I've got a dealer in the area that is interested in it as a trade in because of the new battery pack. Might have to take him up on the offer and get myself an ICE vehicle that I won't have to worry about it being useless again in a year or two. This battery anxiety is for the birds.

Whoa! Slow down a little! Take a breath and look at the numbers. Based on how you are tracking, you probably have at least 4.5 years or more. I don't know what kind of mileage you put on, but you started tracking on this battery during the hottest months. Even if you loose another 4% this year, and 8% next year it still puts you at about 2 years till your first bar loss. The first bar is approximately 15% the remaining bars are 7ish%. In 4ish more years, you will have more options on electric vehicles including the ability even to probably replace your battery with a longer range one for a probably better price than they are selling for now.

Maybe you might be the type that needs to just quit tracking and crunching your numbers and just enjoy driving your car. You got a free replacement and yes we deserve those but if you have to save some relatively reasonable money for more battery (fuel) in your future, just plan for it. By then, the batteries may be more robust and larger for our cars. A person can choose to lament about a lot of things and drive themselves crazy. If you are truly an analytical person, search doggedly and gather all the correct information about what is troubling you, so you can put it to rest as soon as possible. Then you can more quickly move on knowing that you made the best decision you could have made with the information at the time. So... In my opinion, enjoy your car for 4ish more years and see what options are available at that time!

You probably got your (like brand new) car at a very reasonable price compared to new. Unlike someone who purchased new, you have a great advantage monetarily to add a battery (fuel) in your future and still have a very nice car. Yes, It would have been great if the original batteries lasted 10 years as first touted but your car with it's free replacement will make it around 8ish years from new. You may want to extend that when you get there. Don't sweat it so much... relax a little. Ha! I saw that you had a little hokey dealer replace your 12 volt battery! What a hoot! I know it was aggravating, but in time you may laugh too... well hopefully. :lol:

P.S I think someone, maybe me, will develop a 3rd party cooling system for our leafs. When all of these original 5 year warranties plus 1 year for replacement warranties expire, one of us engineers will develop something to cool our batteries to make them last longer. We will pick up where Nissan cut the corner.

 

[bwallach]

So I just lost my 1st bar this week. I have had my 2012 LEAF for 4 years this month. However, I only have 16,391 miles on it. A colleague that has the same model/year and twice the miles has yet to loose any bars. Go figure? I am in Chicago (so colder climate).

 

[DaveEV]

So I just lost my 1st bar this week. I have had my 2012 LEAF for 4 years this month. However, I only have 16,391 miles on it. A colleague that has the same model/year and twice the miles has yet to loose any bars. Go figure?

What are your driving / charging habits like? If your car spends more time over 80% SOC its quite possible it will lose capacity faster despite having fewer miles.

 

[bwallach]

What are your driving / charging habits like? If your car spends more time over 80% SOC its quite possible it will lose capacity faster despite having fewer miles.

* I drive mostly locally a few miles each day. Some days just 5. Other days 10-20.
* Always in Eco mode.
* Very rarely on Highway/freeway (above 60 mph).
* I charge every 2-3 days (220 v charger in garage)
* I charge to 100%. The LEAF is so limited as is that it never made any sense to me to just charge to 80% (always tried to minimize range anxiety for when I do have to go longer). Don't forget the heat sucks it up too and is needed here to stay comfortable. I don't even know how to charge to just 80%.

 

[bwallach]

Well, for what its worth, I am now charging to 80%. Don't know if it will make any difference, but don't want to lose any more bars right now.

Not easy to figure how to even do this. You would think I would have figured this out after 4 years of ownership (LOL). So I set up a timer for 2pm-2pm and 80% charge. This way every time I plug in it charges right away and only charges to 80..Thank you google..

 

[Stanton]

Well, for what its worth, I am now charging to 80%. Don't know if it will make any difference, but don't want to lose any more bars right now.

Charging to 80% may help you a bit, but only because it seems as though your car spent some time sitting @100% every few days. The real reason your Leaf hasn't suffered worse degradation is simple: you don't drive it that much!

 

[DiamondDan73]

Sept 1 38,950 mi AHr 42.94 SOH 65% Hx 58.77%
Sept 2 38,950 mi AHr 50.80 SOH 65% Hx 58.58%
Oct 1 40,900 mi AHr 45.66 SOH 69% Hx 49.02%
Nov 1 43,183 mi AHr 44.31 SOH 67% Hx 46.58%
Dec 1 45,050 mi AHr 44.12 SOH 67% Hx 46.26%
Jan 1 45,990 mi AHr 44.32 SOH 67% Hx 46.59%

Getting 184-187 GID's on a full charge.

 

[bradbissell]

When I turned in my MY13 SV (Dec28) the car had 38228 miles and a SOH of 95%. Overall, I was happy with the degradation of the battery, but I also know it only held up well because I never left the car at 100% for more than a few hours and the weather in Boston was very good for battery life.

 

[bwallach]

Where do I get all these numbers from?

 

[mtndrvr]

2/11/17
31,512 miles
63.65 Ahr
97% SoC
276 GIDs


1/4/16
22,67 miles
64.65 Ahr
97% SoC
279 GIDs
98% SoH
5 QC and 796 Level1/2 charges

Battery seems to like the mountains of CO so far

2013 Leaf, purchased in April 2014

4/27/15
12,094 miles
65.96 Ahr
97% SoC
284 GIDs

9/22/15
19,294 miles
62.7 Ahr
97 SoC
272 GIDs

 

[Lambtron]

Car Purchased 04/04/15 @ 18500 miles w/ 12 Bars indicated. car built 7/11. #6977.
No Spyleaf info available at the time.

Lost first bar 07/05/15. 21455 mi.
207 gids
90.8% soc (100%)
51.1 AHr
16 kWh
77% SOH
59.26% Hx
393.90 V

Lost second bar 07/09/15. 21580 mi.
207 gids
91.3% soc (100%)
50.82 AHr
16 kWh
77% SOH
58.62% Hx
393.81 V

Lost third bar 01/13/16. 26495 mi.
198 gids
95.6% soc (100%)
46.35 AHr
16 kWh
70% SOH
49.91% Hx
393.4 V

 

[dhanson865]

Where do I get all these numbers from?

You'll need leafspy pro and a phone and an OBDII adapter.

 

[dispatchdan]

2012 Leaf acquired 1-15-16.
Currently down 2 bars.

1-19-16
17,316 miles
209 GIDs
91.9 soc (100%)
50.84 AHr
77% SOH
16.2 kWh
72.02 Hx
392.07V

0 QC (indicated) 1090 L1/L2 charges.
Looks like it must of just lost the 2nd bar before I bought it.