Herm
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Re: Lost a "high-voltage battery status" bar, down to 11

Sat Jun 30, 2012 1:08 pm

turbo2ltr wrote:So I charged last night to 100%.
GID is 213, pack volts is 393.75 (assuming I did the conversion right)
I lost the first bar at 228 gid.
so 24% loss?

The cooling plates used in the Volt are 2mm thick, plus a square section at the base for the coolant fittings, lets say 1/2" square by a couple of inches long.. no idea if there is any room inside the battery case for the plates, plus the insulation. You would also need a chiller in the AC loop and a coolant pump. I dont see $5k anywhere. If the active cooling system is opted out that would leave room for a few more modules.

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TickTock
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Re: Lost a "high-voltage battery status" bar, down to 11

Sat Jun 30, 2012 1:19 pm

Seeing how I lost my top bar a couple days after you, I'm watching mine every minute now. :-) I got 213 for 100% this morning, too, but still have 11.

LEAFfan
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Re: Lost a "high-voltage battery status" bar, down to 11

Sat Jun 30, 2012 2:27 pm

TickTock wrote:Seeing how I lost my top bar a couple days after you, I'm watching mine every minute now. :-) I got 213 for 100% this morning, too, but still have 11.
I believe you two will lose your second bar very soon. 213G is about 75% which based on 94-95% (not 100%) is about a 19-20% loss. At 21.25% a second bar will disappear. I tested a new 2012 recently, charged to 100%, and it was 95%. This is why I don't use 100% or 281 as a base here to get a reading. Maybe the people in the cooler states can though. Another new one was tested and it was 97%. That second one may not have sat as long on the lot in the heat as the first one.
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jimbennett
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Re: Lost a "high-voltage battery status" bar, down to 11

Sat Jun 30, 2012 9:35 pm

I confess I only got about a third through this thread, but has anyone calculated the energy cost of keeping the climate control on, say at 85F while it is plugged in? Surely cheaper than putting AC into a garage, just need a cheap exhaust fan and let the car cool its battery!

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JPWhite
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Re: Lost a "high-voltage battery status" bar, down to 11

Sun Jul 01, 2012 2:10 am

jimbennett wrote:I confess I only got about a third through this thread, but has anyone calculated the energy cost of keeping the climate control on, say at 85F while it is plugged in? Surely cheaper than putting AC into a garage, just need a cheap exhaust fan and let the car cool its battery!
I doubt keeping the vehicle interior cool will help the battery much at all, in fact the energy discharge to maintain a cool interior may hinder natural cooling of the battery.

I don't think climate control will stay on for more than 30 minutes at a time anyway unless the vehicle is powered on.
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http://jpwhitenissanleaf.com
2011 Blue SL-e, 132,400 Miles.
Lost 5 Capacity bars
7/18/13 (29,206), 8/25/14 (51,728), 7/12/15 (71.108), 5/12/16 (88,362), 10/17/16 (96,532)
New Battery 12/3/16 (98,956)
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Volusiano
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Re: Lost a "high-voltage battery status" bar, down to 11

Sun Jul 01, 2012 4:29 am

Updating Mark13's 2nd bar loss.

1. Azdre - Reported bar lost mid April to early May, 2012. 17K miles/14 months ownership. Phoenix
2. bturner - May 12, 2012. 13.6K/12 months. Phoenix
3. turbo2ltr - May 18, 2012. 13K/15 months. Phoenix (2nd bar loss reported 6/29/2012)
4. TickTock - May 20, 2012. 14K/12 months Phoenix
5. Volusiano - May 20, 2012. 16.5K/12 months. Phoenix
6. Mark13 - May 22, 2012. 15.7K/12 months. Phoenix (2nd bar loss reported 7/1/2012)
7. Leafkabob - May 26, 2012. 9.5K/12 months. Phoenix
8. Cyellen - June 7, 2012. 10.2K/ 14 months. Phoenix
9. RickS - June 10, 2012. 11.3K/13 months. Phoenix
10. Pipcecil - June 17, 2012. 20.2K/12 months. Dallas, Texas
11. Phxsmiley - June 17, 2012. 13.7K/10 months. Phoenix
12. AZknauer - June 17, 2012. 9.2K/13.5 months. Phoenix
13. Myleaf - June 19, 2012. 13.3K/14 months. Phoenix
14. johndoe74 - June 5, 2012. 13.5K/ 9 months. Phoenix
15. Matt Ferris - June 20, 2012. 15K/ 12 months. Dallas, Texas
16. Shrink - June 21, 2012. 10.2K/ 10.5 months. Phoenix
17. ravi100 - June 24, 2012. 13.1K/ 13.5 months. Southlake, Texas
18. ev4me - approx. June 1, 2012. 7K/ 15 mos. Phoenix (Dropped 2 bars)
19. jspearman - June 28, 2012, ?/10.5 months. Phoenix

Not reported by owner, but by others:
1. Opossum has reported of two cars in Phoenix that have lost 2 bars.
2. Leafkabob reported a street encounter with a Leaf owner who stated he lost a bar after about a year.
3. Skywagon approx. May, 2012. Phoenix

edatoakrun
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Re: Lost a "high-voltage battery status" bar, down to 11

Sun Jul 01, 2012 9:10 am

Fairly significant increase in reported Phoenix temperatures April through June 2012, as opposed to the 30 year average, as well as to last year.

That can't be helping...

You can use the link below to find average, as well as daily high, low, etc., for your own location.
Phoenix Area (ThreadEx Station)
Monthly Totals/Averages
Average Temperature (degrees F)
Years: 1981-2010

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Average 56.5 59.8 65.3 72.8 82.1 90.9 94.8 93.6 88.4 76.7 64.2 55.5 75.0


Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
2011 55.7 55.2 67.8 74.3 78.8 90.8 95.2 98.3 91.4 78.8 63.5 53.2 75.2

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
2012 58.7 60.3 65.9 75.1 84.5 93.8 -
http://www.nws.noaa.gov/climate/xmacis.php?wfo=psr

Of course, battery life may not be your greatest concern...
•The combined global land and ocean average surface temperature for May 2012 was 0.66°C (1.19°F) above the 20th century average of 14.8°C (58.6°F). This is the second warmest May since records began in 1880, behind only 2010.

•The Northern Hemisphere land and ocean average surface temperature for May 2012 was the all-time warmest May on record, at 0.85°C (1.53°F) above average.

•The globally-averaged land surface temperature for May 2012 was the all-time warmest May on record, at 1.21°C (2.18°F) above average.
June temp data not posted yet.

http://www.ncdc.noaa.gov/sotc/global/2012/5" onclick="window.open(this.href);return false;
no condition is permanent

bturner
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Re: Lost a "high-voltage battery status" bar, down to 11

Sun Jul 01, 2012 10:23 am

An update on my battery condition... I lost my 1st Bar May 12th @ 13633 miles. Location = Phoenix Area. I attended the Phoenix EAA meeting this month, where a ScanGage was made available (Big Thanks to Jim!!!).

I charged to 80% on a Blink charger, and read the ScanGage : SOC = 61.9%

Then, I continued the charge to 100% and read the ScanGage : SOC = 72.9%

Current Mileage = 15,364. I did an "informal" capacity check one week ago, and ran the Leaf down past Very Low Battery, but did not hit Turtle mode, and ran a full charge with my Blink at home. It showed 19.5 kw consumed. Of course that is what the charger output, not what actually got into the battery. Actual distance traveled was 58 miles, and I average about 4.5 mi/kw indicated on the Leafs center display. Sigh, I think my second bar will be coming soon...

edatoakrun
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Re: Lost a "high-voltage battery status" bar, down to 11

Sun Jul 01, 2012 11:19 am

bturner wrote:An update on my battery condition...

Then, I continued the charge to 100% and read the ScanGage : SOC = 72.9%

Current Mileage = 15,364. I did an "informal" capacity check one week ago, and ran the Leaf down past Very Low Battery, but did not hit Turtle mode, and ran a full charge with my Blink at home. It showed 19.5 kw consumed. Of course that is what the charger output, not what actually got into the battery. Actual distance traveled was 58 miles, and I average about 4.5 mi/kw indicated on the Leafs center display. Sigh, I think my second bar will be coming soon...
Do I understand correctly, that you made this range test from a 100% charge?

58 miles at 4.5 m/kWh is under 13 kWh. That doesn't seem to be consistent with the 19.5 kWh blink report, unless the charge was only ~66% efficient.

I'd suggest you look at Carwings reports of kWh consumed, for the day of this or any future range tests.
no condition is permanent

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JPWhite
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Re: Lost a "high-voltage battery status" bar, down to 11

Sun Jul 01, 2012 12:42 pm

edatoakrun wrote:
I'd suggest you look at Carwings reports of kWh consumed, for the day of this or any future range tests.
You jest sir?

My Carwings efficiency for June is 6.1 m/kWh. Reality is closer to 4.1
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2011 Blue SL-e, 132,400 Miles.
Lost 5 Capacity bars
7/18/13 (29,206), 8/25/14 (51,728), 7/12/15 (71.108), 5/12/16 (88,362), 10/17/16 (96,532)
New Battery 12/3/16 (98,956)
2018 Model 3 20,000 Miles.

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