MarkAugie
Posts: 17
Joined: Mon Sep 09, 2013 12:52 pm
Delivery Date: 06 Jun 2011
Leaf Number: 000507

Re: Limited Power - Motor power is being limited (Error with full charge)

Tue Jul 28, 2015 10:05 pm

I don't want to beat this thread into the dirt, but lastly, is the below screenshot showing anything useful? Seems strange cell pair 59 is so low.

Image

91040
Posts: 948
Joined: Fri Mar 11, 2011 10:36 pm
Delivery Date: 06 May 2011
Location: Los Angeles, CA

Re: Limited Power - Motor power is being limited (Error with full charge)

Tue Jul 28, 2015 10:24 pm

Well, it would seem that that module has failed.
Interesting that the Ahrs, Hx, SOH and SOC are all reading zero.
1st Capacity Bar loss 30k mi 16.25mo 2nd- 49k mi 25.5mo 51.5Ah
3rd- 73k mi 36.5mo 46.9Ah 71% SOH 50.9Hx 4th- 86.5k mi 43mo 42.61Ah 64% SOH 43.79Hx
5th- 101k mi 50.5mo 38.38Ah 58% SOH 37.02Hx Replaced Battery 9/28/15 104.2k mi 36.13Ah

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drees
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Joined: Fri Apr 23, 2010 3:51 pm
Location: San Diego

Re: Limited Power - Motor power is being limited (Error with full charge)

Wed Jul 29, 2015 2:38 am

91040 wrote:Well, it would seem that that module has failed.

Either that or the battery balancing board. Either way, time to see the dealer.
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MarkAugie
Posts: 17
Joined: Mon Sep 09, 2013 12:52 pm
Delivery Date: 06 Jun 2011
Leaf Number: 000507

Re: Limited Power - Motor power is being limited (Error with full charge)

Thu Jul 30, 2015 12:14 pm

Thanks all for the help.
I'll post a summary when the repair is done. This group / thread has been very helpful.

Our local dealership called and said it was confirmed a bad Cell. The Cell is being shipped ground and they need two certified Techs, so another is going to be sent also -- to assist in the replacement. So it's another week at least before it will be all fixed.

For me, I need to decide if I want to keep the leaf after the extended warranty is up. If it was out of warranty, I would probably opted to just have the whole battery replaced. I've heard that the 120 mile packs cost around 5K. I have no idea if they would be user installable.

When I purchased the Leaf in 2011, I thought maintenance on an electric would be mush simpler, cheaper and quicker. I can see, this is not true. Since I have one of the originals, I am predicting all Leaf users will evenntually go through this if they keep their cars long enough. For me, I was planning on keeping it long enough for a ROI for a new electric car in 7 years.

Lastly, I have a loaner Gas car. Wow, I had forgotten how herky jerky gas cars are... and OMG, the gas prices!

Thanks again! I'll post a wrap up when I get the Leaf back for all the other Leaf owners who will eventually go through this!

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drees
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Joined: Fri Apr 23, 2010 3:51 pm
Location: San Diego

Re: Limited Power - Motor power is being limited (Error with full charge)

Thu Jul 30, 2015 1:39 pm

MarkAugie wrote:For me, I need to decide if I want to keep the leaf after the extended warranty is up. If it was out of warranty, I would probably opted to just have the whole battery replaced. I've heard that the 120 mile packs cost around 5K. I have no idea if they would be user installable.

Cell failure like you experienced is very rare. But it is covered for 8 years / 100,000 miles.

A 24 kWh 2015 LEAF pack (which can be fitted into all 2011-2015 LEAFs) costs about $6,000 installed. It is not user installable. It is unknown whether the 2016 30 kWh pack will be retrofitable to older LEAFs or not and what the cost will be when Nissan makes it available.
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ElectricEddy
Posts: 373
Joined: Tue Feb 25, 2014 1:42 pm
Delivery Date: 31 Oct 2016
Leaf Number: 313506
Location: Nanaimo, B.C.

Re: Limited Power - Motor power is being limited (Error with full charge)

Thu Jul 30, 2015 3:51 pm

MarkAugie wrote:Thanks all for the help.
I'll post a summary when the repair is done. This group / thread has been very helpful.

Our local dealership called and said it was confirmed a bad Cell. The Cell is being shipped ground and they need two certified Techs, so another is going to be sent also -- to assist in the replacement. So it's another week at least before it will be all fixed.

For me, I need to decide if I want to keep the leaf after the extended warranty is up. If it was out of warranty, I would probably opted to just have the whole battery replaced. I've heard that the 120 mile packs cost around 5K. I have no idea if they would be user installable.

When I purchased the Leaf in 2011, I thought maintenance on an electric would be mush simpler, cheaper and quicker. I can see, this is not true. Since I have one of the originals, I am predicting all Leaf users will evenntually go through this if they keep their cars long enough. For me, I was planning on keeping it long enough for a ROI for a new electric car in 7 years.

Lastly, I have a loaner Gas car. Wow, I had forgotten how herky jerky gas cars are... and OMG, the gas prices!

Thanks again! I'll post a wrap up when I get the Leaf back for all the other Leaf owners who will eventually go through this!
Are you located in a warm environment ? Mileage seems pretty good, I couldn't find your location.
Pearl White Sl
mfd date 09/16

MarkAugie
Posts: 17
Joined: Mon Sep 09, 2013 12:52 pm
Delivery Date: 06 Jun 2011
Leaf Number: 000507

Re: Limited Power - Motor power is being limited (Error with full charge)

Thu Jul 30, 2015 5:09 pm

I commute from Milwaukie Oregon to Hillsboro Oregon 5 days a week since I purchased the Leaf in 2011.
Depending on the route, 50-70 miles a day. 2 to 3 hours of driving.

Today it hit 102. Rare. We go below freezing 20 days out of a year. Seldom into the teens.

One day this year we got some Ice. My Leaf slid out into the road while parked in my driveway :) Not sure about anyone else, but I don't drive my Leaf on snow. Luckily, we have few snow days.

MarkAugie
Posts: 17
Joined: Mon Sep 09, 2013 12:52 pm
Delivery Date: 06 Jun 2011
Leaf Number: 000507

Re: Limited Power - Motor power is being limited (Error with full charge)

Sun Aug 16, 2015 6:01 pm

Summary:
Dealership replaced cell 60 in module 30.
It took a a total of 3 weeks. Once issue diagnosed 1.5 weeks. It took another 1.5 weeks to ship the battery and get another certifed tech to replace the battery cell. It sounds like they need two certificated techs to replace a cell.

My mileage range increased 10 miles on a full charge. I still will not risk my 50 mile round trip to work without charging at work. A few years ago, I could easily drive 70 miles on a charge.

What have I learned?
* Well, the first day I brought in my car with this issue, I received a report claiming my batteries were at 95 percent. Well, I can confirm, whatever test they use for that fancy chart is dead wrong.

* Leafspy is a good product to diagnose Battery issues.

* This forum is awesome! Thanks Guys! You had figured out what was wrong before the tehcs.

Below is a snip of the new cell. Kind of obvious which one it is huh? BTW what do the red lines mean?

Image

GerryAZ
Gold Member
Posts: 1408
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: Limited Power - Motor power is being limited (Error with full charge)

Sun Aug 16, 2015 7:19 pm

Red lines mean the cell pair is being shunted to balance the voltage with other cells. I was making my 52-mile roundtrip mostly freeway commute without issue with 8 capacity bars remaining before Nissan replaced the battery in my 2011. I was discharging to VLBW every day (nearly to Turtle), but I always made it home.

Gerry
Gerry
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015

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drees
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Joined: Fri Apr 23, 2010 3:51 pm
Location: San Diego

Re: Limited Power - Motor power is being limited (Error with full charge)

Sun Aug 16, 2015 8:17 pm

Eek! They sure didn't balance the new module that well. What's the cell-pair voltages look like at 100%?

The new module will hit 100% before the rest of the pack limiting usable capacity.

Eventually the module will come back into balance and you should pick up more range. I'd grab a screenshot every day, I'd love to see how long it takes.

Once it's balanced at 100%, you'll see the module have higher voltages at low states of charge.

BTW, it's not possible to replace just one cell, the entire module has to be replaced which contains 4 cells in 2-parallel 2-series configuration.
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