webb14leafs
Posts: 142
Joined: Mon Mar 27, 2017 9:43 am
Delivery Date: 27 Mar 2017

Re: Lost my first bar- Your thoughts please.

Fri Oct 13, 2017 5:57 am

I don't see why you think you will be down to 9 bars in late 2018. If your car is currently 4 years old, that means you're losing roughly 4% capacity per year. In 18 months you should still have 11 bars at that rate.

I just lost my first bar last week. 2014 (late 2013 build date) S with 22,000 miles and only 6 QCs. 84% SOH. It had 87% SOH when I bought it in April. I live in south Florida and the summers are long and brutal. Hopefully my degradation rate holds to about 5-6% per year. I drive 40 miles per day and also have free Level 2 charging at work, so I really only need about 30 miles of range.

leafdriving
Posts: 3
Joined: Sun Oct 08, 2017 3:25 pm
Delivery Date: 08 Oct 2017

Re: Lost my first bar- Your thoughts please.

Mon Oct 30, 2017 1:20 pm

All your posts really did help. I came to the feeling that it's not that bad and it is what it is. I had already started just "driving" it like a car and not worrying about stuff.

Well yesterday I Level 2 charged it to 100%. I hadn't really fully charged the thing in about 4 months and I figured it'd be good to re-balance the battery pack. Today I hooked up LeafSpy to see if the numbers changed drastically because of the 100% charge/re-balance and I got these numbers (my first post's numbers are included first):

10/08/17: AHr= 54.98 SOH= 84% SOC= 70.9% Hx= 81.09% 384.78V -0.45A odo= 23,798 3 QCs & 1417 L1/L2s
10/30/17: AHr= 54.69 SOH= 83% SOC= 90.3% Hx= 80.29% 392.65V -1.12A odo= 23,980 3 QCs & 1429 L1/L2s

webb14leafs wrote:I don't see why you think you will be down to 9 bars in late 2018. If your car is currently 4 years old, that means you're losing roughly 4% capacity per year. In 18 months you should still have 11 bars at that rate.

I just lost my first bar last week. 2014 (late 2013 build date) S with 22,000 miles and only 6 QCs. 84% SOH. It had 87% SOH when I bought it in April. I live in south Florida and the summers are long and brutal. Hopefully my degradation rate holds to about 5-6% per year. I drive 40 miles per day and also have free Level 2 charging at work, so I really only need about 30 miles of range.


This is why I had a feeling that I'll be down to 9 bars shortly after my warranty ends. Just 3 weeks later and only 182 miles later, I've lost 0.29 AHr and 1% SOH. Sorry to ask again but is this normal?

Reddy
Posts: 1436
Joined: Fri Feb 11, 2011 3:09 pm
Delivery Date: 18 Aug 2011
Leaf Number: 006828
Location: Pasco, WA

Re: Lost my first bar- Your thoughts please.

Mon Oct 30, 2017 2:34 pm

leafdriving wrote:This is why I had a feeling that I'll be down to 9 bars shortly after my warranty ends. Just 3 weeks later and only 182 miles later, I've lost 0.29 AHr and 1% SOH. Sorry to ask again but is this normal?
Of course that's normal. Remember, Nissan devised the warranty. :(
Reddy
2011 SL; 9 bar, 46.44 AHr; 40,067 mi; rcv'd Aug 18, 2011
Long: http://www.mynissanleaf.com/viewtopic.p ... al#p226115"
Cold: http://www.mynissanleaf.com/viewtopic.p ... 60#p243033"

Hammersholt
Posts: 1
Joined: Tue Oct 31, 2017 12:38 am
Delivery Date: 10 Aug 2013
Leaf Number: 000596
Location: Denmark

Re: Lost my first bar- Your thoughts please.

Tue Oct 31, 2017 12:55 am

Hi Leafdriving,

Maybe you can use my data to evaluate. I live in Denmark, relative cold country.
My leaf is from august 2013, and have 19.484 miles. This is data from today:

AHr =59.78
SOH = 91%
SOC = 96.1%
395.05V
Hx = 91.38%
38 QCs
899 L1/L2s

I still have 12 bars and dont know when I Will loose my first one.

mxp
Posts: 727
Joined: Fri Apr 23, 2010 9:32 pm
Delivery Date: 26 Jun 2015
Location: Fremont, CA

Re: Lost my first bar- Your thoughts please.

Tue Oct 31, 2017 1:58 am

Hi,
Losing the 12th bar (~55Ahr) and 11th bar (~51Ahr) will happen quickly, at least that's how I've experienced it with both our 2011 Leafs.
Then, it takes a long time to lose the 10th and 9th bars. Our 2 Leafs were driven on different commute ranges and experienced different charging profiles throughout the a typical week.

Here's some old data if you're interested in the behavior of both our 2011 Leafs: viewtopic.php?f=44&t=12789&start=800#p486628

We've since gotten new replacement batteries in our 2011 Leafs. Based on our past 5 - 6 year experiences, I would say the one thing that definitely helps with battery health is: Drive it within the hour of a full charge. My wife's car receives 2 full charges per day and her battery was never worse off than mine.

The next thing we shall avoid this time around, is depleting the battery down low, say to 2 bars. We'll try our best to use the vehicle down to 4 bars (lowest) before the next charge up.

For my car (lets call it the Silver Leaf): I would charge mine (to 80%) but barely use the vehicle some days of the week. The car will just be sitting there mostly @ 80% charge. I am trying to avoid this now the best that I can with my new battery, but it's difficult to time it right....

The climate in the SF Bay Area doesn't do much harm to the batteries. We park/charge both our vehicles outside the garage for the last 5 - 6 years. Lots of QC'ing doesn't do much harm either.


leafdriving wrote:All your posts really did help. I came to the feeling that it's not that bad and it is what it is. I had already started just "driving" it like a car and not worrying about stuff.

Well yesterday I Level 2 charged it to 100%. I hadn't really fully charged the thing in about 4 months and I figured it'd be good to re-balance the battery pack. Today I hooked up LeafSpy to see if the numbers changed drastically because of the 100% charge/re-balance and I got these numbers (my first post's numbers are included first):

10/08/17: AHr= 54.98 SOH= 84% SOC= 70.9% Hx= 81.09% 384.78V -0.45A odo= 23,798 3 QCs & 1417 L1/L2s
10/30/17: AHr= 54.69 SOH= 83% SOC= 90.3% Hx= 80.29% 392.65V -1.12A odo= 23,980 3 QCs & 1429 L1/L2s

webb14leafs wrote:I don't see why you think you will be down to 9 bars in late 2018. If your car is currently 4 years old, that means you're losing roughly 4% capacity per year. In 18 months you should still have 11 bars at that rate.

I just lost my first bar last week. 2014 (late 2013 build date) S with 22,000 miles and only 6 QCs. 84% SOH. It had 87% SOH when I bought it in April. I live in south Florida and the summers are long and brutal. Hopefully my degradation rate holds to about 5-6% per year. I drive 40 miles per day and also have free Level 2 charging at work, so I really only need about 30 miles of range.


This is why I had a feeling that I'll be down to 9 bars shortly after my warranty ends. Just 3 weeks later and only 182 miles later, I've lost 0.29 AHr and 1% SOH. Sorry to ask again but is this normal?

Rat
Posts: 921
Joined: Sun Apr 25, 2010 7:47 pm
Delivery Date: 08 Sep 2011
Location: Silicon Valley
Contact: Website Twitter

Re: Lost my first bar- Your thoughts please.

Tue Nov 07, 2017 3:11 pm

Becky50 wrote:
My advice is to not go OCD on it. Sure, give it a little love but don't go extreme. Enjoy it as a normal car and drive it.
One of the original Forum members gave me this same advice in early 2013. I took it and am still loving driving my 2012 LEAF. It is a 2 bar loser with 36,000 miles. And it continues to meet 99% of my driving needs.

I'm the original Forum member Becky mentioned. I share her experience. I live four blocks from Cupertino, so much like your original owner. I've lost only two bars on my 2011. I don't drive much - still < 30,000 mi. and the car meets 99% of my needs, too. I haven't kept track of exactly when I lost my first two bars, but my impression is that the second one came faster than the first one. It's been garaged most of its life, but the last six months or so it's been kept outside so my wife's repainted car can have the garage. I charge to 80% overnight normally, but now and then go to 100%, sometimes during the day, but I don't think I've ever done it on an exceptionally hot day. I've only used QC five or six times in the life of the car. Your experience sounds pretty normal to me. Like others, I recommend not obsessing and just treat it like a normal car.

Return to “General / Main Owners Forum”