2015: Battery Data Report @ 100% Charge

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Jedlacks said:
Mileage 33,769
GIDs 261
kWh 20.2
SOC 97.1
SOH 89
Hx 84.21
AHr 55.69
Avg Temp 93.9
# QCs 42
GOM at full 103 miles

Mileage 37,519
GIDs 249
kWh 19.3
SOH 85.18
Hx 76.04
AHr 52.9
Avg Temp 76.2
# QCs 54
GOM at full 91 miles

Might drop the first bar soon, but this car still takes me 50 miles a day without issue. And the first set of tires are stacked in the garage ready to go on :cool:
 
DaveinOlyWA said:
tkdbrusco said:
So here's a reading from mine today (2015 S) with 53K on the car and it now being 3.5 years old (based on MFG date).

Reading taken at 100% charge

261 Gids
20.23 kwh
97.22% SOC
83.68 SOH
83.71 HX
55.44 Air
71 Temp

You have been on this forum for over 3 years and still have not posted your location?
It's in his signature. ;)
 
LeafMuranoDriver said:
DaveinOlyWA said:
tkdbrusco said:
So here's a reading from mine today (2015 S) with 53K on the car and it now being 3.5 years old (based on MFG date).

Reading taken at 100% charge

261 Gids
20.23 kwh
97.22% SOC
83.68 SOH
83.71 HX
55.44 Air
71 Temp

You have been on this forum for over 3 years and still have not posted your location?
It's in his signature. ;)

oooh.... ok. so I opened new window for nothing?? :lol:
 
Does SOC matters?

I got my 2015S on 10/7/2017

AHR=54.97
SOH 88%
378.36V
HX=82.74
SOC 54.9
odo 4,873
1QC 273 L1/L2
all bars are blue

Today 10/23/2017 I checked again

AHR 57.75
SOH 92%
Hx=88.49%
odo 5259
2QC 290 L1/L2
SOC 72.1%
there are around 5 blue bars all other are red

how could it become better? and what does the change of blue bar to red mean?
 
2015 S Purchased on 9/30/17
Mileage 29,022
GID's 277
kWh 21.5
SOC 97.3
SOH 94% (Just dropped from 95% at 28,950 miles)
Hx 90.67
AHr 58.87
Avg Temp 69.8
# QC's 369
# L1/L2 595
GOM at full 98
*Previous owner (lessee) lived in Western Oregon's moderate climate
 
changgeng said:
Does SOC matters?

I got my 2015S on 10/7/2017

AHR=54.97
SOH 88%
378.36V
HX=82.74
SOC 54.9
odo 4,873
1QC 273 L1/L2
all bars are blue

Today 10/23/2017 I checked again

AHR 57.75
SOH 92%
Hx=88.49%
odo 5259
2QC 290 L1/L2
SOC 72.1%
there are around 5 blue bars all other are red

how could it become better? and what does the change of blue bar to red mean?

red bars means the cell is actively balancing.

The change in your numbers probably reflects a few things

Your car was idle on the lot which will lower the numbers. Your driving the car raises the numbers to be closer to the real state of your pack. This is normal... Why? good question. Chalk it up to BMS weirdness.

My recommendation; start a log that you can put into a spreadsheet tracking miles driven daily, efficiency (miles per kwh) and LEAF Spy readings. Log it every day at the same time (I do mine first thing in the morning) then look at your numbers over time. You will see A LOT of daily fluctuations. But its the long term trend you want.

So "your" next question is "why do all that when I can log the stats once a month and save a ton of work"

Well you could but

1) its not a ton of work and if it is, you need to adjust your process.

2) your monthly reading could be an abnormally high or low one and you wouldn't have a clue as to which and you will be right back here asking why it happened.

3)EVness is cool so what better hobby is there than monitoring your LEAF! ;)
 
I got my 2017 30kWh Leaf in Dec. 16.

On 11/26/2017
AHR=74.35
SOH 93%
362.48V
HX=88.78
SOC 49.6
odo 10,936
139 QC / 141 L1/L2

On 12/01/2017
AHR=80.44
SOH 100%
371.15V
HX=97.13
SOC 65.7
odo 11,249
148 QC / 142 L1/L2

What I did was just driving my Leaf on highway with pressing and releasing the pedal repeatedly in B range after QC sessions. Higher battery temperature seems giving me more Hx to be gotten back.
 
Current status after 3 years and 1 month driving 40miles per day in the SF bay area.

Model: 2015 Leaf S
Miles 36,403
AHr: 53.462
SoH: 86.38%
Hx: 76.27
Gids: 252 (at SoC 97.3% - from leaf spy, 100% car dash board)
Remaining watts: 19.5KWh
QC: 24
L1/L2: 1153

Usually charge up to 75% +-2%, completing charge 1hr before leaving. Drains up to 23%+-5% everyday (depends on traffic). Drained to 15% twice. Always parked in garage/shade. Once/Twice a month 100% charge to rebalance.

12 bars now - expecting to lose 1st bar sometime soon considering where AHr is based on
http://www.mynissanleaf.com/viewtopic.php?t=21528#p455984
 
I do not recommend it to you guys, but the method I am using could be worth to try at your own risk.

1) Warming up the battery by QC. 8 temp-bar works better than 6 temp-bar in my experience.
2) Driving your Leaf with pressing and releasing the pedal repeatedly in B range. Hx will probably go up rapidly.
3) Once SOC hits 50% or below, increase of Hx will likely stop, but decrease will likely not happen.

Some Japanese Leaf folks are keeping up Hx high using this method. Some 24kWh owners retain Hx = 100%+ at 30k+ miles.
 
2017 LEAF SV

On 12/01/2017
AHR=81.24 (Corrected. 80.44 in previous post was wrong)
SOH 100%
371.15V
HX=97.13
SOC 65.7
odo 11,249
148 QC / 142 L1/L2

On 12/05/2017
AHR=82.34
SOH 100%
355.63V
HX=99.40
SOC 44.4
odo 11,503
155 QC / 142 L1/L2
 
Gensan said:
I do not recommend it to you guys, but the method I am using could be worth to try at your own risk.

1) Warming up the battery by QC. 8 temp-bar works better than 6 temp-bar in my experience.
2) Driving your Leaf with pressing and releasing the pedal repeatedly in B range. Hx will probably go up rapidly.
3) Once SOC hits 50% or below, increase of Hx will likely stop, but decrease will likely not happen.

Some Japanese Leaf folks are keeping up Hx high using this method. Some 24kWh owners retain Hx = 100%+ at 30k+ miles.
How are real world miles looking in those 30k vehicles? I'm below 90% SOH, but I can get over 100 miles on a charge as long as I'm not doing fast highway speeds.
My point is that these numbers are far from perfect and things like this are proving that they can be gamed.
 
hyperionmark said:
Gensan said:
I do not recommend it to you guys, but the method I am using could be worth to try at your own risk.

1) Warming up the battery by QC. 8 temp-bar works better than 6 temp-bar in my experience.
2) Driving your Leaf with pressing and releasing the pedal repeatedly in B range. Hx will probably go up rapidly.
3) Once SOC hits 50% or below, increase of Hx will likely stop, but decrease will likely not happen.

Some Japanese Leaf folks are keeping up Hx high using this method. Some 24kWh owners retain Hx = 100%+ at 30k+ miles.
How are real world miles looking in those 30k vehicles? I'm below 90% SOH, but I can get over 100 miles on a charge as long as I'm not doing fast highway speeds.
My point is that these numbers are far from perfect and things like this are proving that they can be gamed.

This is what I am questioning about too. Since I started using this method I had never charged to 100% with L1/L2. I need more experiments to make a conclusion about this.

As far as I know, there is a Japanese folk whose 65k miles odd 4-yr 24kWh LEAF could reach to 90 miles while SOC went from 100% to 19%. His feeling is that his SOH=90% LEAF does not seem giving him a fake value. I hope his feeling is true.
 
hyperionmark said:
Without knowing what speed he did those 90 miles it is an irrelevant number.

His miles/kWh is more than 5.0 as he mentioned before since he rarely uses highways.
 
Gensan said:
hyperionmark said:
Gensan said:
I do not recommend it to you guys, but the method I am using could be worth to try at your own risk.

1) Warming up the battery by QC. 8 temp-bar works better than 6 temp-bar in my experience.
2) Driving your Leaf with pressing and releasing the pedal repeatedly in B range. Hx will probably go up rapidly.
3) Once SOC hits 50% or below, increase of Hx will likely stop, but decrease will likely not happen.

Some Japanese Leaf folks are keeping up Hx high using this method. Some 24kWh owners retain Hx = 100%+ at 30k+ miles.
How are real world miles looking in those 30k vehicles? I'm below 90% SOH, but I can get over 100 miles on a charge as long as I'm not doing fast highway speeds.
My point is that these numbers are far from perfect and things like this are proving that they can be gamed.

This is what I am questioning about too. Since I started using this method I had never charged to 100% with L1/L2. I need more experiments to make a conclusion about this.

As far as I know, there is a Japanese folk whose 65k miles odd 4-yr 24kWh LEAF could reach to 90 miles while SOC went from 100% to 19%. His feeling is that his SOH=90% LEAF does not seem giving him a fake value. I hope his feeling is true.

Heating up the pack will allow it to store more charge but this is not preserving or renewing capacity. It only allows the charge in the battery to move easier. This "might" be ok in Winter but highly recommend you do not do this when it gets warm and I don't mean Summer time either.

As far as not charging to full on L1/L2; that is a valid concern and the warmer it gets, the greater the concern.

The statement of getting over 100 miles at street speeds is misleading and meaningless. Its easy to do 120 miles on a charge if you are averaging 20 mph on a steady drive.
 
Heating up the pack will allow it to store more charge but this is not preserving or renewing capacity. It only allows the charge in the battery to move easier. This "might" be ok in Winter but highly recommend you do not do this when it gets warm and I don't mean Summer time either.

As far as not charging to full on L1/L2; that is a valid concern and the warmer it gets, the greater the concern.

The statement of getting over 100 miles at street speeds is misleading and meaningless. Its easy to do 120 miles on a charge if you are averaging 20 mph on a steady drive.
I feel you are right. This method might be a cheat technique to make LEAF calculate its battery health condition good. Next question is how this method affect the real battery life or perhaps risk of catastrophic results.

I know that Hx stays unchanged if SOC on dashboard is 50% or below. Also, it seems like that using cruise control can prevent Hx from being decreased. As long as this won't cause any catastrophic results, this method might be a good one to keep up decent range. No one knows though...
 
seonachan said:
Hey All,

I'm new to the forum and to the Leaf - got a 2015 S about 6 weeks ago. Here's my data from yesterday after a full charge:

build date: 10/14
mileage: 27,893
GOM at full charge: 108 mi
SOC: 97.2%
AHr: 59.03
SOH: 95%
Hx: 90.94%
GIDS: 278
kWh: 21.5
avg temp: 80.3
max voltage: 16 mV
QCs: 1
L1/L2: 811

Yesterday:
mileage: 31,428
SOC: 97.3%
AHr: 60.19
SOH: 96.93%
Hx: 90.99%
GIDS: 283
kWh: 21.9
avg temp: 38.8
max voltage: 11 mV
QCs: 3
L1/L2: 907

So a slight improvement over 3 months ago. But that hides a wild ride in my battery stats in the interim. Over a period of 3 weeks, from the end of September to late October, SOH went from 96% to 90% (AHr 59.945 to 56.213), before bouncing back up. A good lesson in not sweating the day-to-day or even week-to-week fluctuations.

Also, Until about a month ago, the AHr would almost always be slightly different each day. But now, since hitting 60.386 on 12/7, it's only moved once, going down to 60.194 on 12/21, where it's been since.
 
So I’m really getting concerned... I still have only lost 2 bars on the GOM. However, LeafSpy Pro is reporting that I have only 42.90Ah at 100% charge. Oh yeah, only 15.7kWh too.

By everything I’ve read hear I should have dropped the 4th bar by this level of Ah.

So the question I have is what are the lowest Ah readings folks have seen at 3 and 4 bars lost? This should be from folks with 2015 or later 24kWh Leafs.

Thanks!
 
Relayer1956 said:
So I’m really getting concerned... I still have only lost 2 bars on the GOM. However, LeafSpy Pro is reporting that I have only 42.90Ah at 100% charge. Oh yeah, only 15.7kWh too.

By everything I’ve read hear I should have dropped the 4th bar by this level of Ah.

So the question I have is what are the lowest Ah readings folks have seen at 3 and 4 bars lost? This should be from folks with 2015 or later 24kWh Leafs.

Thanks!

My ‘13 dropped the 4th bar while fluctuating between 41.58 and 42.65 Ah, SOH 63-65%. My kWh weren’t recorded but I remember them being around 14 on a full charge.
 
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