Valdemar
Posts: 2367
Joined: Tue May 10, 2011 10:32 pm
Delivery Date: 09 Sep 2011
Location: Oak Park, CA

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

Sun Aug 16, 2015 8:39 pm

Does this mean that newer modules are compatible with the 2011 pack/LBC or Nissan stocks old module design, possibly used modules from warranty replacement core returns? Do you have the part code for the module they replaced somewhere on paperwork? I assume this work was done for free under battery warranty?
'11 SL, totaled
-1CB@33k/21mo, -2CB@53k/33mo, -3CB@68k/41mo, -4CB(41.5AHr)@79k/49mo, -5CB(38.85AHr)@87.5k/54mo
-0CB(66.14AHr)@87.5k/54mo (BBB)
60.5AHr, SOH 94%, 105k miles
9kW Solar

GerryAZ
Gold Member
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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 10:47 pm

They replaced module 30 which contains cell pairs 59 and 60. Those two cell pairs should get balanced with the 47 original modules after a few charge/discharge cycles. As the pack gets better balanced, the BMS will allow deeper discharge and higher charge so you should get some range back.

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

HeavyG
Posts: 1
Joined: Sun Aug 31, 2014 3:32 pm
Delivery Date: 12 Aug 2014

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

Fri Apr 29, 2016 6:29 am

MarkAugie wrote: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


I got the same power is limited error on my 2013 SL after a full charge yesterday. Was able to drive 40-50 mph on flat roads though from 0-30 mph was annoying slow (for the people behind me) though I was able to get it to the dealer 40 miles away via backroads.

My dealership diagnosed Cell 57 as bad. First one the dealership has seen with this error. I was able to give them some hints from this forum so thanks everyone. It looks like it will take at least a week but it sounds like I can probably plan for 2-3 weeks. Got a loaner easy breezy from them.

To add to this thread and perhaps as a harbinger of what was to come: My Leaf had been quickly discharging once I hit about 50-55 miles remaining. I would start with 85-90 miles, and though my commute was only 47 miles, mostly at highway speeds, I was getting to work lately with only about 15 miles remaining and I did not use any climate control on most days. Last year I was arriving at work with about 40 miles remaining. Chargepoint app had been telling me that it had given me about 12 KWh (~50%) of a charge, though I should have received about 18-20 KWh. I suspected something was wrong and was about to take it in anyway.

Anyway, thanks again for this discussion. Looking forward to less range anxiety as I will need to use climate control (AC) if winter ever lets go here in Denver.

jjeff
Posts: 1347
Joined: Wed Jan 13, 2016 9:10 am
Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

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

Fri Apr 29, 2016 11:09 am

^^^ will it be covered under the 3 year warranty, if not did they say how much it was going to cost? I take it they are going to just replace the bad cell?
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

DesertSprings
Posts: 145
Joined: Wed Dec 03, 2014 4:40 pm
Delivery Date: 21 Dec 2014
Leaf Number: 319100
Location: Southern California

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

Fri Apr 29, 2016 11:30 am

Bad cells should be covered under the 8 year battery warranty.

testboat
Posts: 4
Joined: Sun Jul 28, 2013 10:17 pm
Delivery Date: 09 Mar 2013
Location: California- North Bay

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

Sat Apr 30, 2016 7:21 am

My 2013 Leaf S has been diagnosed with a bad cell at 30,000 miles. I still have all 12 battery bars but moderately reduced range. Leaf Spy has been showing a low cell for 2+ years. Hopefully the dealer can have it fixed in a week.

Jeff
N. California

jjeff
Posts: 1347
Joined: Wed Jan 13, 2016 9:10 am
Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

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

Sat Apr 30, 2016 12:44 pm

DesertSprings wrote:Bad cells should be covered under the 8 year battery warranty.

Even if the car is showing more than 8 bars? and if so, what exactly constitutes a bad cell and not just a weak cell?
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

LeftieBiker
Posts: 6434
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

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

Sat Apr 30, 2016 8:04 pm

jjeff wrote:
DesertSprings wrote:Bad cells should be covered under the 8 year battery warranty.

Even if the car is showing more than 8 bars? and if so, what exactly constitutes a bad cell and not just a weak cell?


Most capacity loss is the result of all of the cells losing substantial capacity. A bad cell may not drop the capacity that much overall if the other cells are great, but it is still covered by the "defect" warranty, because it's a manufacturing defect, not what Nissan calls "gradual" capacity loss.
2013 "Brilliant Silver" SV with Premium Package and no QC, and 2009 Vectrix VX-1 with 18 Leaf cells.

The most offensive, tasteless phrase in use here is "Pulled the trigger." I no longer respond to posts that use it.

ElectricEddy
Posts: 345
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)

Sat Apr 30, 2016 9:03 pm

drees wrote: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.

If Nissan is defects warranty replacing modules instead of packs, just how many modules in a stack would constitute a stack replacement?
When the pack is manufactured, it is assembled and enclosed in an uncontaminated and sterile environment. Would not opening the the pack and servicing the cells not expose the remaining pack to say high humidity levels and develop into corrosion , or various other contaminants?
I guess a new module is better than no module but IMHO have reservations about it.
Pearl White Sl
mfd date 09/16

Cor
Posts: 144
Joined: Sun Jun 30, 2013 6:53 am
Delivery Date: 07 Jul 2015

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

Mon Oct 31, 2016 2:53 pm

ElectricEddy wrote:When the pack is manufactured, it is assembled and enclosed in an uncontaminated and sterile environment. Would not opening the the pack and servicing the cells not expose the remaining pack to say high humidity levels and develop into corrosion , or various other contaminants?
I guess a new module is better than no module but IMHO have reservations about it.

Eddy,
I can answer this as I have opened and worked on 8 packs so far.
While the pack is wheather-proof, itis *not* air tight.
In fact, if you remove the service disconnect you can look right into the pack, as the O-ring to seal the disconnect plug is in the plug itself that you pull out.
In addition, Nissan does not want to risk problems with pressure difference between inside and outside of such a big enclosure, that could easily lead to deformation, so there are 4 breather openings on the 2011/2012 packs (cost optimised to 2 on 2013+ packs), so ambient air can flow into and out of the shell and equalize pressure. In some conditions this could indeed cause some buildup of moisture from condensation, but the continuous breathing will also allow that to vaporize and dissipate over time again.
Hope this clarifies.

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