GRA
Posts: 11196
Joined: Mon Sep 19, 2011 1:49 pm
Location: East side of San Francisco Bay

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Wed Nov 20, 2019 5:11 pm

amissionleaf wrote:
Wed Nov 20, 2019 4:55 pm
goldbrick wrote:
Wed Nov 20, 2019 4:00 pm
amissionleaf wrote:
Wed Nov 20, 2019 2:49 pm
my 2017 leaf sv just lost its first bar yesterday at 28100 miles
yikes. do you live in a hot climate?
not really. in CA bay area

That covers a wide range of micro-climates, from cool, foggy coast e.g. Pacifica to hot inland/south bay e.g. Livermore/Morgan Hill. Can you be a bit more specific?
Guy [I have lots of experience designing/selling off-grid AE systems, some using EVs but don't own one. Local trips are by foot, bike and/or rapid transit].

The 'best' is the enemy of 'good enough'. Copper shot, not Silver bullets.

amissionleaf
Posts: 23
Joined: Mon Oct 08, 2018 1:53 pm
Delivery Date: 23 Mar 2017
Leaf Number: 302367

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Wed Nov 20, 2019 5:36 pm

GRA wrote:
Wed Nov 20, 2019 5:11 pm
amissionleaf wrote:
Wed Nov 20, 2019 4:55 pm
goldbrick wrote:
Wed Nov 20, 2019 4:00 pm


yikes. do you live in a hot climate?
not really. in CA bay area

That covers a wide range of micro-climates, from cool, foggy coast e.g. Pacifica to hot inland/south bay e.g. Livermore/Morgan Hill. Can you be a bit more specific?
daytime in mountain view, nighttime in milpitas/fremont
2014 S; 33500 miles, returned with 12 bars.
2017 SV; 20000+ miles, sw update 10/8/18, feels like 15 miles range back,.
date miles SOH
10/19/2018 20853 91.50%
10/19/2019 27176 85.26%
11/19/2019 28100 84.74% first bar lost

GRA
Posts: 11196
Joined: Mon Sep 19, 2011 1:49 pm
Location: East side of San Francisco Bay

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Wed Nov 20, 2019 5:42 pm

amissionleaf wrote:
Wed Nov 20, 2019 5:36 pm
GRA wrote:
Wed Nov 20, 2019 5:11 pm
amissionleaf wrote:
Wed Nov 20, 2019 4:55 pm


not really. in CA bay area

That covers a wide range of micro-climates, from cool, foggy coast e.g. Pacifica to hot inland/south bay e.g. Livermore/Morgan Hill. Can you be a bit more specific?
daytime in mountain view, nighttime in milpitas/fremont

So, not Antioch or Livermore, but towards the hotter end of bay area climates. Thanks.
Guy [I have lots of experience designing/selling off-grid AE systems, some using EVs but don't own one. Local trips are by foot, bike and/or rapid transit].

The 'best' is the enemy of 'good enough'. Copper shot, not Silver bullets.

GaleHawkins
Posts: 67
Joined: Sat Oct 26, 2019 5:24 pm
Delivery Date: 15 Oct 2019
Leaf Number: 311365
Location: Murray KY

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Sat Nov 23, 2019 8:49 pm

This is question to 30 kWh Leaf battery owners using Leaf Spy Pro.

What cell voltage levels are you reading when charged to 100% and on the low end like at around 6-8% at the Very Low Battery warning if you have tested at these SOC's?

Please note estimated mileage range at 100%. Thanks.

goldbrick
Posts: 636
Joined: Tue Aug 01, 2017 3:33 pm
Delivery Date: 01 Aug 2017
Leaf Number: 311806
Location: Boulder, CO

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Sat Nov 23, 2019 9:39 pm

I haven't charged to 100% in about a year and have never been below 8% but I would guestimate my GOM would say about 130 miles at 100% SOC based on what I see at 80% etc.

johnlocke
Posts: 481
Joined: Fri Jan 08, 2016 3:47 pm
Delivery Date: 14 Dec 2015
Leaf Number: 300582

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Sat Nov 23, 2019 10:17 pm

GaleHawkins wrote:
Sat Nov 23, 2019 8:49 pm
This is question to 30 kWh Leaf battery owners using Leaf Spy Pro.

What cell voltage levels are you reading when charged to 100% and on the low end like at around 6-8% at the Very Low Battery warning if you have tested at these SOC's?

Please note estimated mileage range at 100%. Thanks.
4.10 to 4.11 at full charge 9 mv spread on the cells. 3.3 to 3.4 depending on how low I actually get. There's a knee to the curve at the bottom end and I try to stay above it. Estimated range via the Guess-O-Meter starts at 83 mi but is up to 118 mi at 95% after I come down the hill (12.9 mi). I figure 1 mi per percentage point and ignore the Guess-O-Meter. Real range is 85-90 mi. with 100% charge (322 Gids). A typical drive for me is a 56 mile round trip (28 mi one way) done between 8 AM and 11 AM including stops for errands. There's a 1900 ft elevation change each way and going uphill sucks the juice right out of the battery. I've actually had the battery down to 8-10 Gid's a couple of times as a test.
2016 SV, New battery at 45K mi.
Jamul, CA
San Diego East County

GaleHawkins
Posts: 67
Joined: Sat Oct 26, 2019 5:24 pm
Delivery Date: 15 Oct 2019
Leaf Number: 311365
Location: Murray KY

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Sun Nov 24, 2019 8:13 am

Thanks for the details. When I get a chance I will post my DC charges from last Monday and Saturday. I am interesting in understanding more about SOC and SOH and why last Monday the charger stopped at 94% of charge but yesterday both times it made it to 97% and did it in less time than on Monday. Battery temps where about the same. Monday air temps were 50F and yesterday were 39F.

After the second charge yesterday my range was a reported 68 miles but within the first mile dropped to 57 miles then back to 68 miles of range. I drove it home 50 miles and had about 20 miles showing. I have not seen any more 95 mile ranges reports to only drop 15 miles within the first 2 miles of driving.

I did see online another 2016 SL only showing 5/12 SOH bars at 21K miles that is located in CA. That would be an interesting case study I expect.

https://www.cargurus.com/Cars/l-Used-N ... 51936701

johnlocke
Posts: 481
Joined: Fri Jan 08, 2016 3:47 pm
Delivery Date: 14 Dec 2015
Leaf Number: 300582

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Sun Nov 24, 2019 9:47 am

GaleHawkins wrote:
Sun Nov 24, 2019 8:13 am
Thanks for the details. When I get a chance I will post my DC charges from last Monday and Saturday. I am interesting in understanding more about SOC and SOH and why last Monday the charger stopped at 94% of charge but yesterday both times it made it to 97% and did it in less time than on Monday. Battery temps where about the same. Monday air temps were 50F and yesterday were 39F.

After the second charge yesterday my range was a reported 68 miles but within the first mile dropped to 57 miles then back to 68 miles of range. I drove it home 50 miles and had about 20 miles showing. I have not seen any more 95 mile ranges reports to only drop 15 miles within the first 2 miles of driving.

I did see online another 2016 SL only showing 5/12 SOH bars at 21K miles that is located in CA. That would be an interesting case study I expect.

https://www.cargurus.com/Cars/l-Used-N ... 51936701
Using the Guess-O-Meter for range estimates is useless. It's estimate is based on the last few minutes of driving only. Drive uphill, it will drop drastically, drive downhill and you get unrealistically high numbers. Even if you drive the exact same route every day, the beginning and ending values will vary. Use the % remaining gauge instead. It's much more accurate. You'll get a feel for how much range you actually have very quickly.
2016 SV, New battery at 45K mi.
Jamul, CA
San Diego East County

johnlocke
Posts: 481
Joined: Fri Jan 08, 2016 3:47 pm
Delivery Date: 14 Dec 2015
Leaf Number: 300582

Re: 2016-2017 model year 30 kWh bar losers and capacity losses

Sun Dec 01, 2019 6:03 pm

Dec update. 319 GID's 69.81 AH, SOH=87.83%, Hx=68.44%, 74870 total mi. 27941 mi on new battery. 18 DCFC and 512 l2 charges on the new battery. The battery is continuing to slowly degrade. Now that cooler weather is here again I expected the battery to show a slower loss. That hasn't happened. After 18 months I'm down 12.2% compared to new. It looks like I'll be down by 23-25% when the warranty expires. That's about 18 months away at the rate i'm driving. That's also about as much battery loss as I care to deal with. I'd like to wait for the Model Y or the ID4 but I don't know when they will actually be available. The Tesla Pickup has shown up and it ticks most of the boxes for me but it's actually larger than my Tundra which will make it a bitch to park and I'm concerned about range while towing. Towing a horse trailer, the Tundra gets 10-12 mpg which gives me a couple of hundred miles of range. The Model X towing gets as little as 1/3 of it's rated mileage. If the pickup does as badly then I'd need the 500 mile $70K version. I'm not willing to spend that much. I could go for the $50K 300 mile version if if I could squeeze 175 miles out of it while towing. Otherwise it's back to a sedan and keep the gasser for towing and hauling.
2016 SV, New battery at 45K mi.
Jamul, CA
San Diego East County

Return to “Problems / Troubleshooting”