GregH
Posts: 860
Joined: Fri Jul 01, 2011 4:16 pm
Delivery Date: 13 Jun 2011
Leaf Number: 26967
Location: Irvine, CA

I want my 281!

Wed Sep 07, 2011 8:47 am

SOC#/RAhC/wtf only got to 272 this am after I forced charge following the 80% overnight charge. I know early on I saw as high as 280 and lately it's been 274/275, but 272? This is going in the wrong direction. I see no evidence of cell balancing. This battery is rarely over 80% or under 20%, and while it is warm out, it's mostly sitting in a garage. How many people can now read pack voltage, current and SOC# on their Leaf? And how many of you still see 280/281 on a full charge?
'17 blue Volt Premier w/ACC
'12 SL black Leaf
'11 SL blue Leaf
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91040
Posts: 970
Joined: Fri Mar 11, 2011 10:36 pm
Delivery Date: 06 May 2011
Location: Los Angeles, CA

Re: I want my 281!

Wed Sep 07, 2011 9:35 am

The SOC meter has read 77.5% (218 raw) after my last two 80% charges. I am pretty sure a week or so ago, it read 80% and 80.4%.

It has been fairly hot here but the battery temperature still shows 6 segments. My hypothesis, based on my extensive Arts and Humanities background, is that the battery capacity has gone up with the heat and that the raw numbers are not constant. We can correlate this when we have access to finer battery temperature data. Meanwhile, I will be tracking the readings after charging.
1st Capacity Bar loss 30k mi 16.25mo
2nd- 49k mi 25.5mo 51.5Ah
3rd- 73k mi 36.5mo 46.9Ah
4th- 86.5k mi 43mo 42.61Ah
5th- 101k mi 50.5mo 38.38Ah, end 36.13Ah
New Battery 9/28/15 104k mi 66.14Ah
1st- 160.5k 34mo 54.02Ah

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Boomer23
Posts: 3545
Joined: Sun May 23, 2010 9:57 pm
Delivery Date: 30 Mar 2011
Location: Orange County, CA

Re: I want my 281!

Wed Sep 07, 2011 9:56 am

I've been getting low SOC readings as well since I started using my new meter last week. I can't recall exactly, but I think I've been seeing between 272 and 274. It got my attention, too, since I was able to see 281 with Robert's development rig a few months ago.
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garygid
Gold Member
Posts: 12443
Joined: Wed Apr 21, 2010 8:10 am
Delivery Date: 29 Mar 2011
Leaf Number: 000855
Location: Laguna Hills, Orange Co, CA

Re: I want my 281!

Wed Sep 07, 2011 10:06 am

I will do some testing here and report the SOC readings.

I am not yet aware of programming bugs in the SOC-Meter,
but ... it is possible. :)
See SOC/GID-Meter and CAN-Do Info
2011 LEAF, sold in 2015
2010 Prius, 2014 silver Tesla S
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lincomatic
Posts: 312
Joined: Fri Jun 10, 2011 10:01 am
Delivery Date: 06 Apr 2011
Leaf Number: 3819

Re: I want my 281!

Thu Sep 08, 2011 7:31 am

I charged mine to 100% last night, and when I checked the it this morning, I got SOC = 270, 393.0V.
Mine's even worse! Where's my 281??

I was watching it charge last night, and watched it click over from 79.8% to 80.1%
At 80.1% (225), I had 390.0V

I normally charge to 80% except on Fri/Sat nights, where I charge to 100%.

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surfingslovak
Vendor
Posts: 3809
Joined: Mon Jun 13, 2011 1:35 pm

Re: I want my 281!

Thu Sep 08, 2011 6:29 pm

I couldn't help noticing that the reports of relatively sudden drop in battery capacity were clustered geographically. AFAIK it's Southern California and Arizona. I'm wondering if there could be environmental factors at play, especially in the light of this ABC news article mwalsh referenced in another post. Could any of the posters confirm that it's been unusually warm in the past week or so?

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Boomer23
Posts: 3545
Joined: Sun May 23, 2010 9:57 pm
Delivery Date: 30 Mar 2011
Location: Orange County, CA

Re: I want my 281!

Thu Sep 08, 2011 6:32 pm

surfingslovak wrote:I couldn't help noticing that the reports of relatively sudden drop in battery capacity were clustered geographically. AFAIK it's Southern California and Arizona. I'm wondering if there could be environmental factors at play, especially in the light of this ABC news article mwalsh referenced in another post. Could any of the posters confirm that it's been unusually warm in the past week or so?


Yes, it's been hot, but nothing like Texas or AZ. Low 90s, maybe, and only for a couple of days.
2014 BMW i3 with Range Extender
2017 Chevy Bolt EV Premier Kinetic Blue
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sparky
Posts: 710
Joined: Fri Apr 23, 2010 10:55 am
Delivery Date: 08 Jan 2011
Location: SoCal

Re: I want my 281!

Thu Sep 08, 2011 6:40 pm

Boomer23 wrote:I've been getting low SOC readings as well since I started using my new meter last week. I can't recall exactly, but I think I've been seeing between 272 and 274. It got my attention, too, since I was able to see 281 with Robert's development rig a few months ago.

With my own "development rig" my 100% SOC normally varies between 272 and 280; I've never witnessed 281.
I've also noticed that the range is a bit better these last few weeks. Perhaps the warmer but not hot (< 95F)
conditions.

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Boomer23
Posts: 3545
Joined: Sun May 23, 2010 9:57 pm
Delivery Date: 30 Mar 2011
Location: Orange County, CA

Re: I want my 281!

Thu Sep 08, 2011 7:05 pm

Worst ever this morning:

100% charge beginning at midnight with no stop timer set, charged 5.0 hours, 18.6 kWh
12 bars
SOC #: 257
SOC %: 91.4
Total miles: 4,464
Car's age: about 5.3 months
Daytime temp yesterday, low 90s
2014 BMW i3 with Range Extender
2017 Chevy Bolt EV Premier Kinetic Blue
Blog: http://drivingelectric.blogspot.com" onclick="window.open(this.href);return false;

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evnow
Moderator
Posts: 11441
Joined: Thu Apr 22, 2010 11:41 am
Delivery Date: 25 Feb 2011
Leaf Number: 303
Location: Seattle, WA

Re: I want my 281!

Thu Sep 08, 2011 7:20 pm

I've been geting 276. I once got 279.

But my 80% charges have all been 231.

Anyway after 100% charge the SOC meter goes down so fast, it hardly matters whether we get 276 or 281.
1st Leaf : 2/28/2011 to 5/6/2013
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