DaveinOlyWA
Gold Member
Posts: 12218
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 10 Nov 2016
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: Capacity Loss on 2011-2012 LEAFs

Tue Feb 07, 2017 7:26 pm

snguyen4 wrote:
DaveinOlyWA wrote:
snguyen4 wrote:Can anyone explain this to me. My number are a lot higher than what I started with when I started using LeafSpyPro. I have a 2012 and the warranty is good until 11/23/17. I've been trying very hard but it looks like I'm making it better and not worst. Also what temp should I try to bring the battery up to?

12/12/16
AHr=46.29
SOH=70%
Hx=49.81%
33,639 Miles
119 QCs & 983 L1/L2

1/12/17
AHr=45.67
SOH=69%
Hx=48.79%
34,187 Miles
137 QCs & 1104 L1/L2

2/1/17
AHr=46.70
SOH=71%
Hx=50.49%
34,962 Miles
172 QCs & 1156 L1/L2

Thank You



well for one; your numbers are not a lot higher. they are essentially the same. there will always be some bouncing around of the numbers. that is completely normal.

as far as hastening your pack's demise that few more ahr you need for a replacement, I would suggest just driving it more since you have a ton of mileage, fast charge it to heat it up. But then again, you have all Summer. I don't see it possible that you will miss the warranty


Should I stop QC and pushing the battery? Today I got the temp to 132F and my numbers are increasing :(

2/7/17
AHr=46.94
SOH=71%
Hx=50.86
35,331 Miles
186 QCs & 1162 L1/L2


132º! oh no you dont want to stop. at that rate, you will be dropping bars faster faster than bets on the Super Bowl...
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 (build 10/2016)"low water marks" 26,100.2 miles.363GID Ahr 79.55Hx95.35%kwh28.1QCs227,L2's 237
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snguyen4
Posts: 11
Joined: Thu Dec 08, 2016 10:39 pm
Delivery Date: 23 Nov 2012
Leaf Number: 123456
Location: Garden Grove CA

Re: Capacity Loss on 2011-2012 LEAFs

Tue Feb 07, 2017 7:44 pm

arnis wrote:Still, I'm very interested in temperature bar data.
What is the outside temperature and when do you get those last bars. So when you see another temperature bar on instrument cluster,
what are temperature sensor readings (the hottest sensor)?
AFAIK DC charging is limited in chunks with some specific battery temperature readings. Like at normal temperature 50kW rate is possible.
At some point only 25kW is possible. Then 12,5kW and maybe 6,25kW (you reported something near that).
Also acceleration should be limited as well (double rings will disappear). Have you observed this behavior?


The outside temperature was 58F when I started and 65F when I stopped at around 2 PM PST.
The highest temperature reading from LeafSpyPro was 133.3 but the temperature bar only reached the first red bar and it never reached the last red bar. After my 3rd QC the acceleration was limited when the battery temperature is in the 130F. I was only able to accelerate to the 3rd ring and as the battery enter the 120F I was able to accelerate to all but the last 3 rings.

arnis
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Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

Re: Capacity Loss on 2011-2012 LEAFs

Wed Feb 08, 2017 10:09 am

Thanks. So the first red bar appears around 55C (or 131F).

Interesting fact, Tesla heats battery to 50C to launch it in Ludicrous mode :lol:
But actually 55C is still the limit, even for Tesla.
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
Charging: Trickle <3kW -- Normal 3-22kW -- Fast 50-100kW -- Supercharging >100kW

Valdemar
Posts: 2412
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Delivery Date: 09 Sep 2011
Location: Oak Park, CA

Re: Capacity Loss on 2011-2012 LEAFs

Wed Feb 08, 2017 2:42 pm

Somewhere on this forum someone said that the number of bars corresponding to temperatures is a function of SOH.
'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)
59.7AHr, SOH 93%, 118k miles
9kW Solar

Kristis
Posts: 46
Joined: Sun Jan 15, 2017 11:39 am
Delivery Date: 15 Jan 2017
Leaf Number: 014631
Location: Lithuania, Europe

Re: Capacity Loss on 2011-2012 LEAFs

Thu Feb 09, 2017 7:50 am

Can someone who understands this, comment on my battery?
All good or is this 91% SOH and 81% hx (have no idea whats that) are things to worry about?
Image
'13 Nissan Leaf
'16 Lexus NX300h

Kristis
Posts: 46
Joined: Sun Jan 15, 2017 11:39 am
Delivery Date: 15 Jan 2017
Leaf Number: 014631
Location: Lithuania, Europe

Re: Capacity Loss on 2011-2012 LEAFs

Thu Feb 09, 2017 7:58 am

This was measured with -10celcius (14 Fahrenheit) if there's a difference
'13 Nissan Leaf
'16 Lexus NX300h

Kristis
Posts: 46
Joined: Sun Jan 15, 2017 11:39 am
Delivery Date: 15 Jan 2017
Leaf Number: 014631
Location: Lithuania, Europe

Re: Capacity Loss on 2011-2012 LEAFs

Mon Feb 13, 2017 1:43 pm

Anyone still using leafspy and 2011-2012 Leaf?
'13 Nissan Leaf
'16 Lexus NX300h

WetEV
Posts: 1757
Joined: Fri May 04, 2012 8:25 am
Delivery Date: 16 Feb 2014
Location: Near Seattle, WA

Re: Capacity Loss on 2011-2012 LEAFs

Mon Feb 13, 2017 3:31 pm

Kristis wrote:Can someone who understands this, comment on my battery?
All good or is this 91% SOH and 81% hx (have no idea whats that) are things to worry about?


As far as I know, your battery looks fairly good.

Hx is low, but should go up with warmer temperatures. I've never seen battery below 0C, so can't comment too much.

60AHr is good. SOH 91% matches.

Battery balance looks good at 12mV (hard to read, I think I got the number correctly....)
WetEV
#49
Most everything around here is wet during the rainy season. And the rainy season is long.
2012 Leaf SL Red (Totaled)
2014 Leaf SL Red

cwerdna
Gold Member
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Re: Capacity Loss on 2011-2012 LEAFs

Tue Feb 14, 2017 12:51 am

Kristis wrote:Anyone still using leafspy and 2011-2012 Leaf?

Not me, but I'm sure there are plenty, besides Turbo3 himself. IIRC, he has an '11.

Why do you ask?

'13 blue Leaf SV w/premium package (owned)
'13 blue Leaf SV w/QC + LED & premium packages (lease over, car returned)
'06 Prius

Kristis
Posts: 46
Joined: Sun Jan 15, 2017 11:39 am
Delivery Date: 15 Jan 2017
Leaf Number: 014631
Location: Lithuania, Europe

Re: Capacity Loss on 2011-2012 LEAFs

Tue Feb 14, 2017 5:40 am

WetEV wrote:
As far as I know, your battery looks fairly good.

Hx is low, but should go up with warmer temperatures. I've never seen battery below 0C, so can't comment too much.

60AHr is good. SOH 91% matches.

Battery balance looks good at 12mV (hard to read, I think I got the number correctly....)


Thanks ;) But isnt 20% of hx and 10% of soh a bit too excessive for 10 000miles?
'13 Nissan Leaf
'16 Lexus NX300h

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