2016-2017 model year 30 kWh bar losers and capacity losses

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I'm here to just check in. I'm hoping my 4th bar drops soon. I'm expecting by spring / summer 2023? Thanks for making this overall thread since as Jan 2024 gets closer, I think we will start seeing a lot of 'before 8 years old' warranties starting. I guess we all have to just get in line, I Just hope they honor the battery if the install / delivery doesn't occur before the 8 years are up, as long as the warranty is documented and approved before the 8th year.

what else do we need to bring to Nissan dealer? just the car and 4 bars lost on the dash? Bulletin EL19-071? NTB20-001 ?

2016 Leave SL
1N4BZ0 ... (has firmware upgrade)
Purchased early Feb 2020 - 12 bars (Fake SOH? 85.44 at time of purchase. lost 5% in first month of ownership / limited driving). (36,666)
SOH stabilized in March after 1 month of ownership. << Lost 1st bar>>
2020-03-30 - 80.12 SOH
2020-06-13 - 79.79 SOH
2020-08-30 - 78.71 SOH
2021-01-01 - 76.75 SOH
2021-03-20 - 76.20 SOH << Lost 2nd Bar >> (39,889)
2021-07-01 - 74.65 SOH
2021-12-01 - 73.52 SOH
2022-04-01 - 72.59 SOH
2022-05-01 - 72.40 SOH << Lost 3rd bar >> (45,690)
2022-07-11 - 71.50 SOH
2022-09-18 - 70.60 SOH
2022-10-31 - 68.50 SOH
2023-01-09 - 68.31 SOH (48,857)
 
TeaHSD said:
I'm here to just check in. I'm hoping my 4th bar drops soon. I'm expecting by spring / summer 2023? Thanks for making this overall thread since as Jan 2024 gets closer, I think we will start seeing a lot of 'before 8 years old' warranties starting. I guess we all have to just get in line, I Just hope they honor the battery if the install / delivery doesn't occur before the 8 years are up, as long as the warranty is documented and approved before the 8th year.

what else do we need to bring to Nissan dealer? just the car and 4 bars lost on the dash? Bulletin EL19-071? NTB20-001 ?

2016 Leave SL
1N4BZ0 ... (has firmware upgrade)
Purchased early Feb 2020 - 12 bars (Fake SOH? 85.44 at time of purchase. lost 5% in first month of ownership / limited driving). (36,666)
SOH stabilized in March after 1 month of ownership. << Lost 1st bar>>
2020-03-30 - 80.12 SOH
2020-06-13 - 79.79 SOH
2020-08-30 - 78.71 SOH
2021-01-01 - 76.75 SOH
2021-03-20 - 76.20 SOH << Lost 2nd Bar >> (39,889)
2021-07-01 - 74.65 SOH
2021-12-01 - 73.52 SOH
2022-04-01 - 72.59 SOH
2022-05-01 - 72.40 SOH << Lost 3rd bar >> (45,690)
2022-07-11 - 71.50 SOH
2022-09-18 - 70.60 SOH
2022-10-31 - 68.50 SOH
2023-01-09 - 68.31 SOH (48,857)

So long as the Lithium-Ion Battery Controller (LBC) was reprogrammed, which according to the above it has, you should be good to go. Let that last bar drop and take it in to a dealership of your choice, let them fully diagnose it and then have patience (replacement packs are taking up to 6 months). Some have called the Nissan EV customer support team to get a case number (I will be doing that when it happens to me) that the dealership can reference as well.
 
mn4az said:
(replacement packs are taking up to 6 months).

yes that's the biggest fear of mine, is that it will be valid and confirmed by dealer before the 8 years is up in Feb 2024 but delays will not allow it to be delivered / dealt with till after the date of warranty expiration before the battery is physically in my car and I drive away.

Obviously you can reduce this fear with a corporate case #, documentation, etc, but I know some people have had issues with some dealers. We will see soon!

Many more battery replacements coming in the next 12-24 months I think as the timeline gets to the end of the time span!
 
yes that's the biggest fear of mine, is that it will be valid and confirmed by dealer before the 8 years is up in Feb 2024 but delays will not allow it to be delivered / dealt with till after the date of warranty expiration before the battery is physically in my car and I drive away.

There is no need to worry about that. Once the need for replacement has been documented by Nissan, the warranty expiration becomes irrelevant. If the above scenario were the case, then abuse by car dealerships would be rampant.
 
I agree. thanks, looking forward to it hitting the 8th bar this summer. I've looked for other things to bring to the dealer, but we will see! I will try and hand-hold them by printing out warranty / documentation from Nissan to bring in at the time.
 
Well.. as expected, I just lost my 9th battery bar yesterday. I now have an appt to have the dealer look at it next week and start the warrantee process on my 30kwh pack.

Some interesting notes:

The time between when LeafSpy first showed a SOH reading below 66.25% and when the 9th battery bar fell off was exactly 1 week, down to the hour. Coincidence? This matches with the '1 week' timer that I've read about.

The only capacity data I have is from the past month, but it shows the capacity dropping 1.27% during December. Average outside temp was about 70F, so that counts against extreme temperature being a factor. Seems like a very fast drop for one month, and that correlates with my subjective feeling that capacity loss was accelerating over the last year.

1336 L1/L2 and 134 QCs. I have almost exclusively used my L1 charger in my garage. Top-up charges are rare. I usually don't charge unless the SOC is below 50%, or I know I need a full charge in the morning.

47.5k miles. The car is driven about 25-30 miles 3-4 days a week. Not a heavy driving situation here either.

Leafspy doesn't show any unusual voltage readings, so I don't suspect any bad cells. Typical deltaV is ~10-15mV.
 
Degradation acceleration is a thing, even in the frozen tundra of Minnesota.

https://mynissanleaf.com/viewtopic.php?p=624838#p624838

"Data indicates degradation is happening faster as I lose bars:

BMS update (6/21/2018 @ 32643 miles) to 1st bar loss (10/24/2019 @ 50731 miles) was 2.28 SOH drop per 5K miles driven
BMS update (6/21/2018 @ 32643 miles) to 2nd bar loss (6/2/21 @ 61865 miles) was 2.39 SOH drop per 5k miles driven
BMS update (6/21/2018 @ 32643 miles) to 3rd bar loss (8/26/22 @ 75041 miles) was 2.47 SOH drop per 5k miles driven"

As of January 1, 2023, SOH of was 68.75 for a 2.55 SOH drop per 5K miles driven. When it's in the 20s or colder the car will frequently give me a "limited motor power" warning and I have 3 weak cells (according to LeafSpy). Spring and that 4th bar dropping cannot happen fast enough.
 
I wouldn't be surprised if those in super cold areas are having more capacity loss vs. some areas not as cold due to lithium plating.

I've pointed to pages 10 and 11 (bottom right corner page numbers) of https://acep.uaf.edu/media/304144/Cold-Weather-Issues-for-EVs-in-Alaska.pdf a bunch of times before.
 
Oils4AsphaultOnly said:
It took 6 months, but my replacement battery is finally on its way!! Straight from Japan!

Great news!

I'm very likely 4 - 6 months away from getting in line. Hopefully by then the supply chain problems have been rectified and my wait isn't as long as yours was.

Did a mid-month check and I'm down to 68.43% SOH. On January 1, 2023 it was at 68.75% SOH. Capacity degradation is now at 2.572 SOH lost for every 5K miles driven vs 2.47 SOH lost for every 5K driven when the 3rd bar dropped on Aug 26, 2022. I'm expecting the degradation rate to go much faster when winter is over. My hope is that I'm on the list by June 1st so that if there is a 6 month wait, I have the new battery in time for next winter. With the weak cells and Limited Motor Power warnings we don't count on much more than 40 miles of driving before needing to plug it back in. It's gotten old.
 
mn4az said:
With the weak cells and Limited Motor Power warnings we don't count on much more than 40 miles of driving before needing to plug it back in. It's gotten old.

Just imagine if you had started with a 24 kWh pack. This is why I try to warn people against the simple conclusion that the warranty period is long enough to get a new pack. You also have to be able to make do with the degraded battery for a while, and the while can be months and months. And in winter.
 
SageBrush said:
mn4az said:
With the weak cells and Limited Motor Power warnings we don't count on much more than 40 miles of driving before needing to plug it back in. It's gotten old.

Just imagine if you had started with a 24 kWh pack. This is why I try to warn people against the simple conclusion that the warranty period is long enough to get a new pack. You also have to be able to make do with the degraded battery for a while, and the while can be months and months. And in winter.

I was fully aware of the '16 Leaf battery challenges when I purchased mine new. However, for the ridiculously low price (after tax credits) that I got for it, the stupid low TCO, I'd do it again in a heartbeat because even now it fits the needs of our family. If someone asked me about it I totally would be transparent with these '16/'17 Leafs and what they may encounter.
 
For the first time this winter the battery pack temperature in my Leaf hit 5 bars. I normally see the SOH% degradation slow down during the winters. Being curious as to where SOH was with warm-ish pack, I charged it up and gathered some data earlier than I normally do (typically the first of the month). It's amazing that it's dropped 3.57% SOH since the August 26, 2022. Data is clear that the degradation rate is happening faster as time/miles pass. In September I figured that the 4th bar would drop this summer. Now... I'm thinking this spring.

4NDX2mx.jpg


For a bit of context... Battery capacity bars dropped on dates in the red columns and the capacity loss per 5K miles was determined from the first full charge after the LBC software update that was performed on 6/20/2018.
 
Took my leaf into the dealer this week to get the battery warrantee process started. Turns out they needed to keep the car overnight for testing, however I received a call early the next morning saying that the new battery was approved and put on order. cool!

Unfortunately, I wasn't told which battery was ordered, or when the expected delivery date would be. The only information they had for me was that it was the same or equivalent part number as the original battery, and no info at all about arrival date other than "it could be a couple days, or a couple weeks.. we don't know."

So, I guess I'll be surprised when it comes in!
 
GreatScott said:
Took my leaf into the dealer this week to get the battery warrantee process started. Turns out they needed to keep the car overnight for testing, however I received a call early the next morning saying that the new battery was approved and put on order. cool!

Unfortunately, I wasn't told which battery was ordered, or when the expected delivery date would be. The only information they had for me was that it was the same or equivalent part number as the original battery, and no info at all about arrival date other than "it could be a couple days, or a couple weeks.. we don't know."

So, I guess I'll be surprised when it comes in!

Great news!
 
mn4az said:
For the first time this winter the battery pack temperature in my Leaf hit 5 bars. I normally see the SOH% degradation slow down during the winters. Being curious as to where SOH was with warm-ish pack, I charged it up and gathered some data earlier than I normally do (typically the first of the month). It's amazing that it's dropped 3.57% SOH since the August 26, 2022. Data is clear that the degradation rate is happening faster as time/miles pass. In September I figured that the 4th bar would drop this summer. Now... I'm thinking this spring.

4NDX2mx.jpg


For a bit of context... Battery capacity bars dropped on dates in the red columns and the capacity loss per 5K miles was determined from the first full charge after the LBC software update that was performed on 6/20/2018.

Took my monthly data reading yesterday... SOC% 97.8% and SOH 67.53%.

I continue to be amazed at how quickly, in the middle of winter, the pack is degrading. Only explanation I have is the draw of heat + motor power is really stressing an already degraded pack and accelerating it.
 
I am right there with you at 67.65% SOH. I hope to lose my 4th bar by this sprint / summer 2023! was dropping fast for a few months but seems to have slowed.
 
Model: 2016 Leaf SV (US market)
Date: September 21, 2022
Miles: 44,618.2
SoH: 63.5%

That was when I bought the car, knowing it was 8 bars. Just got it back a couple weeks with the new 40kWh pack replaced under warranty!
 
maldiver said:
Model: 2016 Leaf SV (US market)
Date: September 21, 2022
Miles: 44,618.2
SoH: 63.5%

That was when I bought the car, knowing it was 8 bars. Just got it back a couple weeks with the new 40kWh pack replaced under warranty!

amazing to have that happen that way! They didn't know the gold they had for sale! how did the warranty process go for you? (Price you paid for the sept 2022 purchase?). i'm sure when you saw the dash and confirmed it had the Firmware update you jumped on it!
 
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