GRA
Posts: 11065
Joined: Mon Sep 19, 2011 1:49 pm
Location: East side of San Francisco Bay

Re: How much mileage are you getting in this cold weather ?

Sat Jan 05, 2013 1:13 pm

Found the following site, which explains various factors affecting battery life very clearly:

http://www.mpoweruk.com/life.htm" onclick="window.open(this.href);return false;

Scroll down the Depth of Discharge section for that specifically.
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.

mynameisjim
Posts: 140
Joined: Fri Oct 08, 2010 2:12 pm
Delivery Date: 17 Jul 2012
Leaf Number: 23226
Location: Minneapolis, MN

Re: How much mileage are you getting in this cold weather ?

Sat Jan 05, 2013 3:49 pm

kubel wrote:...Heater (auto, 75F, feels like 55F), heated steering wheel, and heated seat on hi running non-stop. Eco mode....
I wanted to add that based on my experience the heater will only draw approximately 1500 watts max in ECO mode. That's probably why your setting of 75 feels like 55. This behavior is overridden with the defrost or when 90 degrees is selected

Leon
Posts: 22
Joined: Thu Sep 02, 2010 6:13 am

Re: How much mileage are you getting in this cold weather ?

Thu Jan 17, 2013 7:42 am

I'm in the Denver area and I've been getting between 2.4 and 2.7 mKwh. The temps have been in the single digits F on my way to work and merely cold on the way home. I commute 26 miles to work. 10 miles at 82mph, 15 miles at 70 mph. 1-2 miles surface speeds. I charge to 80% at home and work. Blast the heat, crank the seat and I LOVE this car....

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TonyWilliams
Posts: 10091
Joined: Sat Feb 19, 2011 1:48 am
Location: San Diego
Contact: Website

Re: How much mileage are you getting in this cold weather ?

Thu Jan 17, 2013 12:27 pm

Leon wrote:I'm in the Denver area and I've been getting between 2.4 and 2.7 mKwh. The temps have been in the single digits F on my way to work and merely cold on the way home. I commute 26 miles to work. 10 miles at 82mph, 15 miles at 70 mph. 1-2 miles surface speeds. I charge to 80% at home and work. Blast the heat, crank the seat and I LOVE this car....
So, you're doing 52 miles total? Do you hit Low Battery Warning?

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mwalsh
Posts: 9644
Joined: Thu Apr 22, 2010 10:10 am
Delivery Date: 05 Jan 2011
Leaf Number: 0213
Location: Garden Grove, CA

Re: How much mileage are you getting in this cold weather ?

Thu Jan 17, 2013 12:35 pm

TonyWilliams wrote:So, you're doing 52 miles total? Do you hit Low Battery Warning?
Think you might have missed where he says he's charging to 80% at both home AND work.
2011 Blue Ocean SL with 83,000 miles
2015 pack on 12/30/15
Tinted windows
Bosch AGM 12v
Ecopia 422+ tires
L1 EVSE upgrade
FIAMM horns
Superbright LED lighting
2013 sun visors
LED shifter
Heated seats
GT-R map lamp lenses
Altima illuminated door switches

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Nubo
Posts: 5401
Joined: Fri May 28, 2010 11:01 am
Delivery Date: 31 Oct 2014
Location: Vallejo, CA

Re: How much mileage are you getting in this cold weather ?

Thu Jan 17, 2013 2:14 pm

Tuesday trip in the Bay area; nearly all freeway. Trip 1 was early morning, kept speed at 55 or below; this was not a problem as it fit in with the traffic flow at that time. Arrived with just having dropped to 2 bars, and about 24 miles remaining on the GOM.

Trip 3 was the return. Gridlock on 101 fwy from Palo Alto to San Francisco. Saved enough energy from these slow speeds (5.8 m/kWh) that once I got off the Bay Bridge I was able to take the carpool lane mostly at 65mph all the way to Vallejo, and saved a TON of time. I even threw on the heater near the end :P Most of the rest of the time I used steering wheel and seat heat only. Ambient temps ranged from 29F to 39F but with a warm jacket I was fairly comfortable. Fogging was not a problem thanks to low humidity and I'd dehumidified the cabin aggresively for a couple of days leading up to the trip. Arrived home with 2 bars and 13 GOM miles; having spent a bit more energy on the return trip knowing I had the power to do so.

Trip 2 was moving the car at end of charge, to be a good EV citizen. Good thing because someone had already ICEd the other port.

Carwings underestimated the miles slightly
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I noticed you're still working with polymers.

KJWL
Posts: 39
Joined: Sat Jan 07, 2012 9:27 am
Delivery Date: 06 Jan 2012
Leaf Number: 2407

Re: How much mileage are you getting in this cold weather ?

Fri Feb 01, 2013 10:29 pm

Weeks-long stretch of (what I call) very cold weather in Salt Lake City this Jan. single digits in the morning, mid teens in the afternoon. Terrible awful air pollution too. Our long term average for warm weather has been 4.3 mi/kWh. So around 90+ miles IF we press it to LBW which we almost never do.
During this cold snap: we preheat for my wife's commute, she drives in Eco but cranks the heater, no seats or steering wheel (2011). January average was 3.1mi/kWh So again, if we press it to the end, 60+ miles. But after 45 of those we'd likely be running w/o heater. We lose a third, pretty much exactly as expected. I'll add it to my list of reasons to bring on the summer! ML
Edit: occurred to me driving around today- you can hyper mile (or try to) no matter how cold it is. Our big drop in range is a combination of blasting the power hungry heater AND the well established fact that a cold battery actually has less in it. So the bars go away faster because each one represents its usual percentage, but of a lesser whole.
Icidentally, we've seen the Guess-o-Meter read 42 with a new 100% charge, 12 bars, right out of the garage! It's possible to get to our house having gone several miles all uphill. After just a couple of blocks, it goes back to reality-world but still only mid 60s if its really cold. Battery temp stays at 4 bars, we've seen 3 once or twice. ML
2011 Blue Ocean
the Vacaville Nissan Demo
LEAF #2407
trailered to SLC, UT 1/6-7/12
EVSE Upgrade, thanks Phil!

TBag
Posts: 5
Joined: Fri Apr 26, 2013 5:22 pm
Delivery Date: 26 Apr 2013

Re: How much mileage are you getting in this cold weather ?

Sun Dec 29, 2013 7:06 pm

Shaka wrote:.

Note that the only numbers you will ever see on that web page are 0, 8, 17, 25, 33, 42, 50, 58, 67, 75, 83, 92, and 100. It's really just a fraction masquerading as a percentage.

Ray
A fraction and a percentage are the same thing.

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planet4ever
Posts: 4674
Joined: Sat Apr 03, 2010 9:53 pm
Delivery Date: 02 May 2011
Leaf Number: 1537
Location: Morgan Hill, CA, south of San Jose

Re: How much mileage are you getting in this cold weather ?

Sun Dec 29, 2013 8:39 pm

TBag wrote:Note that the only numbers you will ever see on that web page are 0, 8, 17, 25, 33, 42, 50, 58, 67, 75, 83, 92, and 100. It's really just a fraction masquerading as a percentage.
Shaka wrote:A fraction and a percentage are the same thing.
Not at all. A fraction with a denominator of 12 has about 1 digit precision. A percentage with no decimal has 2 digits precision. By presenting it as a percentage they are trying to fool you into thinking it is about 8 times as precise as it really is.

Ray
End of April 2013: Traded my 2011 SL for a 2013 S with charge pkg.

Reddy
Posts: 1544
Joined: Fri Feb 11, 2011 3:09 pm
Delivery Date: 18 Aug 2011
Leaf Number: 006828
Location: Pasco, WA

Re: How much mileage are you getting in this cold weather ?

Mon Dec 30, 2013 1:02 pm

This might have been posted in other cold weather threads, but here is some very good real-world data for "best" and "average" distance driven in Leafs and Volts as a function of temperature:
http://www.greencarreports.com/news/108 ... rom-canada
Reddy
2011 SL; 9 bar, 45.80 AHr; 45,000 mi; rcv'd Aug 18, 2011
Long: http://www.mynissanleaf.com/viewtopic.p ... al#p226115"
Cold: http://www.mynissanleaf.com/viewtopic.p ... 60#p243033"

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