DaveinOlyWA
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Leaf Number: 314199
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Re: 2016 30 kWh Battery data

Sun May 14, 2017 7:01 am

johnlocke wrote:
DaveinOlyWA wrote:
johnlocke wrote:Highest AH reading was 79.88. GID's was 363. GID's appears to be limited internally by software. Members have reported AH readings as high as 82 AH which should yield a GID's value around 374 but we don't see that. The best value I can come up with for a GID is 79W/GID based on a nominal 360vdc multiplied by the AH reading and divided by the number of GID's. YMMV.



I am using 77.5 watts/GID and my stats are 363/82.34

The 82.34 is a number I have seen on other LEAFs but most of them were 2017's or very late 2016's like mine (mine is an S30 so not possible to be anything but)

as far as what you see on LEAF Spy, you don't see the top un charged part of the pack. SOC at full charge is generally 97 something %. So your numbers are basically correct. 374 or 375 is the GID count at 100%

You misunderstand me. If the GID's value was unrestrained then a battery that reported 82 AH would report 374 GID's at full charge instead of 363 GID's. As long as the battery reports more than about 79.5 AH, the GID's value remains at 363.

NIssan only charges the cells to 4.11 vdc instead of the full rated voltage of 4.2 vdc This means that the battery is only ever charged to 92% of actual capacity. Nissan also limits the cutoff voltage to about 3.3 vdc per cell instead of the rated 2.8 vdc (although the difference only amounts to a couple of percent of capacity). Nissan does this to prolong the battery life. Fully charging to 4.2 vdc and and allowing discharging to 2.8 vdc would shorten the battery life significantly so I understand Nissan's logic here. SOC is the percentage of charge compared to the current capacity of the battery. I have never seen it higher than 97 or 98% even though it ought to hit 100% for a fully charged battery.

If I'm right in my theory, after a full charge you ought to be able to drive several miles before your GID's value starts to drop. When my leaf was new I could drive 2 miles before the percentage gauge would drop from 100% to 99%. I never thought to check it with LeafSpy to see if the GID's value was changing. If you have a chance, could you try that? It would be interesting to know one way or the other.


The GID values can be user set and the Kwh available does change. First off can we agree we have a 29.6424 Kwh pack? (82.34 ah * 360 volts nominal)

So if GIDs= 77.5 w-h, then GIDs at full charge (roughly 97% of "seeable" battery capacity) is 363 with kwh available of 28.1,

Change GID = 80 w-h, then kwh available becomes 29.0 This is an unrealistic figure. Its simply too high a percentage of battery capacity and the other thing is it simply does not pencil out in real range calculations.

The other thing is you can set max GIDs which in LS is 375 but I have yet to be able to manipulate settings to get that high so not sure how you can say GIDs are SW limited when they are not at the max value?

As far as GID values? The first few GIDs drop almost immediately. Its .4 of a mile to get out of my neighborhood and my GIDs are typically 360-361
2011 SL; 44,598 miles. 2013 S; 44,840 miles. 2016 S30; 16,015 miles. 363 GIDs, Ahr 81.90, Hx; 98.25% kwh 28.1 QCs 141, L2's 170
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jbuntz
Posts: 37
Joined: Thu Dec 08, 2016 5:41 am
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Leaf Number: 303765
Location: New Braunfels, TX

Re: 2016 30 kWh Battery data

Sun May 14, 2017 7:15 pm

Oils4AsphaultOnly wrote:
jbuntz wrote:As of 5/13/2017 mine is at 69.27 AHr 87% SOH 5683 ODO. It went down a full AHr in 6 days :( Seems like I am not that far behind johnlocke


Are you missing a digit on your ODO? 5683 miles and already down to 87%?!?!


No missing digits. Mine did sit on a dealer lot for a year. It was at 86% when I first got LeafSpy at about 500mi. Since then it went up to 90% for a while and now it back down to 87%. Sitting around and Texas heat is apparently a bad combination.
Mfg 11/15 Del 12/16 New Braunfels, TX 2016 SL 30kWh, 5175 miles. 324 GIDs, Ahr 70.75, SOH 89%, Hx; 85.31% kwh 25.1 @ 77.5/GID

johnlocke
Posts: 98
Joined: Fri Jan 08, 2016 3:47 pm
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Leaf Number: 300582

Re: 2016 30 kWh Battery data

Tue May 16, 2017 12:14 pm

Just saw the first bar disappear this morning. After about a half hour of driving, I was back to all 12 bars again. Stats are 304 GID's AH = 66.40 SOH =83% Hx = 76.83% odo = 27355 mi. 43 QCs & 507 L1/L2. I also just put Michelin Defenders on the car Friday. New tires were good for a 15% hit on battery consumption 3.2m/KWH vs 3.8m/KWH. This car has been at 3.8m/KWH for over 20,000 miles with virtually no variance between charges. I hope to gain most of that back as the tires break in. Tire pressures are at 42 psi same as my old tires. New tires are 225/50's vs 215/50's. Between the tires and battery loss, I'm down to an effective range of 65-70 miles. With the worn out tires I could go 80-85 miles if necessary. Looks like I'm going to be doing more DCFC now.
Jamul, CA
San Diego East County

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Stanton
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Re: 2016 30 kWh Battery data

Tue May 16, 2017 1:08 pm

johnlocke wrote:I also just put Michelin Defenders on the car Friday. New tires were good for a 15% hit on battery consumption 3.2m/KWH vs 3.8m/KWH.


Been there, done that: good tires.
You'll get about half of the difference back after 5k+ miles (say 3.5 m/kWH). Having said that, I am consistently > 4.2 m/kWH.
2011 Blue Ocean SV w/floor mats & window tint
12v LiFePO4 battery & FIAMM 74100 horns
Wet Okole seat covers (front)
Tor's low-power heater mod
2013 sun visor
3G modem upgrade
L2 EVSE Upgrade
Battery Pack replaced (Rev E) @51 months and 41k miles

DaveinOlyWA
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Posts: 11721
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 10 Nov 2016
Leaf Number: 314199
Location: Olympia, WA
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Re: 2016 30 kWh Battery data

Thu May 18, 2017 8:27 am

johnlocke wrote:Just saw the first bar disappear this morning. After about a half hour of driving, I was back to all 12 bars again. Stats are 304 GID's AH = 66.40 SOH =83% Hx = 76.83% odo = 27355 mi. 43 QCs & 507 L1/L2. I also just put Michelin Defenders on the car Friday. New tires were good for a 15% hit on battery consumption 3.2m/KWH vs 3.8m/KWH. This car has been at 3.8m/KWH for over 20,000 miles with virtually no variance between charges. I hope to gain most of that back as the tires break in. Tire pressures are at 42 psi same as my old tires. New tires are 225/50's vs 215/50's. Between the tires and battery loss, I'm down to an effective range of 65-70 miles. With the worn out tires I could go 80-85 miles if necessary. Looks like I'm going to be doing more DCFC now.



Sadly, you will be VERY lucky to gain back half your efficiency. The tires you had were the top rated for range which is why they were on your car. Sure they had compromises like all tires do but any other tire will not do as well. Not sure how the Michelins rate but...

It also looks like your miles/kwh are lower than your previous LEAF? I am seeing lower numbers as well which does align more with the range I am seeing. This makes the GOM a bit more accurate I guess...
2011 SL; 44,598 miles. 2013 S; 44,840 miles. 2016 S30; 16,015 miles. 363 GIDs, Ahr 81.90, Hx; 98.25% kwh 28.1 QCs 141, L2's 170
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johnlocke
Posts: 98
Joined: Fri Jan 08, 2016 3:47 pm
Delivery Date: 14 Dec 2015
Leaf Number: 300582

Re: 2016 30 kWh Battery data

Thu May 18, 2017 8:17 pm

DaveinOlyWA wrote:
johnlocke wrote:Just saw the first bar disappear this morning. After about a half hour of driving, I was back to all 12 bars again. Stats are 304 GID's AH = 66.40 SOH =83% Hx = 76.83% odo = 27355 mi. 43 QCs & 507 L1/L2. I also just put Michelin Defenders on the car Friday. New tires were good for a 15% hit on battery consumption 3.2m/KWH vs 3.8m/KWH. This car has been at 3.8m/KWH for over 20,000 miles with virtually no variance between charges. I hope to gain most of that back as the tires break in. Tire pressures are at 42 psi same as my old tires. New tires are 225/50's vs 215/50's. Between the tires and battery loss, I'm down to an effective range of 65-70 miles. With the worn out tires I could go 80-85 miles if necessary. Looks like I'm going to be doing more DCFC now.



Sadly, you will be VERY lucky to gain back half your efficiency. The tires you had were the top rated for range which is why they were on your car. Sure they had compromises like all tires do but any other tire will not do as well. Not sure how the Michelins rate but...

It also looks like your miles/kwh are lower than your previous LEAF? I am seeing lower numbers as well which does align more with the range I am seeing. This makes the GOM a bit more accurate I guess...


I bought the tires knowing I'd take a hit on milage. The original tires were Michelin's as well. The hit on milage was inevitable. I got the Defenders because they had the highest milage warranty (90K) but any tire I picked would have given me a hit anyway. I'm happy with the new tires. They seem a little more poised and grip the road better than the original tires. It will take a couple thousand miles to break them in and then I'll see what the damage actually is. The milage warranty is important to me because I burn out tires by the middle of the warranty anyway. Just the nature of the roads I drive on. This is my first Leaf by the way.
Jamul, CA
San Diego East County

jbuntz
Posts: 37
Joined: Thu Dec 08, 2016 5:41 am
Delivery Date: 17 Dec 2016
Leaf Number: 303765
Location: New Braunfels, TX

Re: 2016 30 kWh Battery data

Sun May 21, 2017 6:30 pm

jbuntz wrote:
Oils4AsphaultOnly wrote:
jbuntz wrote:As of 5/13/2017 mine is at 69.27 AHr 87% SOH 5683 ODO. It went down a full AHr in 6 days :( Seems like I am not that far behind johnlocke


Are you missing a digit on your ODO? 5683 miles and already down to 87%?!?!


No missing digits. Mine did sit on a dealer lot for a year. It was at 86% when I first got LeafSpy at about 500mi. Since then it went up to 90% for a while and now it back down to 87%. Sitting around and Texas heat is apparently a bad combination.


68.77 AHr and 86% SOH as of today.
Mfg 11/15 Del 12/16 New Braunfels, TX 2016 SL 30kWh, 5175 miles. 324 GIDs, Ahr 70.75, SOH 89%, Hx; 85.31% kwh 25.1 @ 77.5/GID

Oils4AsphaultOnly
Posts: 103
Joined: Sat Oct 10, 2015 4:09 pm
Delivery Date: 20 Nov 2016
Leaf Number: 313890
Location: Arcadia, CA

Re: 2016 30 kWh Battery data

Mon May 22, 2017 8:26 am

jbuntz wrote:
jbuntz wrote:
Oils4AsphaultOnly wrote:
Are you missing a digit on your ODO? 5683 miles and already down to 87%?!?!


No missing digits. Mine did sit on a dealer lot for a year. It was at 86% when I first got LeafSpy at about 500mi. Since then it went up to 90% for a while and now it back down to 87%. Sitting around and Texas heat is apparently a bad combination.


68.77 AHr and 86% SOH as of today.


That sucks. :(

On the plus side, we'll know pretty soon if the percent levels of the battery bars are still the same! Although that's our silver lining of your dark cloud.
[2013 leaf traded for 2016 leaf S30 (7300 miles & 363 GIDs @ 1 May 2017)! ... still getting a model3 though. :D

Valdemar
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Location: Oak Park, CA

Re: 2016 30 kWh Battery data

Mon May 22, 2017 10:36 am

Someone has reported a bar loss earlier and it did appear that the first bar is 2-3% "wider" as compared to 24kWh packs.
'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

johnlocke
Posts: 98
Joined: Fri Jan 08, 2016 3:47 pm
Delivery Date: 14 Dec 2015
Leaf Number: 300582

Re: 2016 30 kWh Battery data

Mon May 22, 2017 6:30 pm

I'm down to 82% SOH and the first bar comes and goes on me. I'm at 11 bars right after charging but after 20-30 minutes of driving I'm back to 12 bars. Is anyone else seeing something similar? My suspicion is that I'm going to be down to 80% before that bar stays gone, It also implies that the next 3 bars might be 10% wide each. I might need to get down to 50% SOH to qualify for a new battery. That's not acceptable. A 50 mi range won't cover my daily commute. If that was what I wanted I could have bought a 24KWH to start with and saved $10K. So much for a "typically 80% capacity at 100K miles". Thanks, Nissan.
Jamul, CA
San Diego East County

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