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dgpcolorado
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Delivery Date: 15 Dec 2011
Location: The Western Slope, Colorado

Re: One more winter range post- 33*, 80% to 0 bars: 32.8 mil

Thu Dec 22, 2011 3:46 pm

I'll add another cool weather range data point from yesterday:

Trip: Grand Junction to Montrose, Colorado
Distance: 70 miles
Elevation gain: About 1100 feet net
Altitude: About 4700 feet to start and about 5800 feet at end.
Temperature: 33 degrees to start, 29 degrees at end
Battery temp: Four bars to start, five bars at end
Charge: 100%, in garage ~45 degrees, so not especially cold; left soon after charging finished
Speed: More than half the route at 55 mph, but no higher despite the 65 speed limit
Tires: 38 psi cold at start
Road: clean and dry
Heat: Ten to fifteen minutes (in Eco mode) when I realized I was going to make it but mostly off except for heated steering wheel.
Drive setting: entirely in Eco, much of the highway stuff on cruise control except for hills, I did coast down two grades in neutral.
Trees: I "made" about 2 and a half trees so I was trying to be careful.

Results: I got the "low battery" warning about one mile from my destination, so I had perhaps ten more miles left. So, 80+ miles range at freezing temperatures but also at moderately high altitude (less dense air).

Edit: Since I didn't record miles/kWh I believe I can calculate it from the recharge:
Assumptions: 75% efficiency from wall @ 120V, 4 Watts idle on EVSE, about 12 hours idling.

((22.82 kWh - (4 W x 12 hours)) x .75)/70 miles = 17.079 kWh/70 miles = 0.244 kWh/mile = 4.1 kWh/mile

That's the best I can come up with.
Last edited by dgpcolorado on Sat Dec 24, 2011 10:07 am, edited 2 times in total.
Blue 2012 SV Dec 2011 to Feb 2016
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DaveEV
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Location: San Diego

Re: One more winter range post- 33*, 80% to 0 bars: 32.8 mil

Thu Dec 22, 2011 4:51 pm

dgpcolorado wrote:Results: I got the "low battery" warning about one mile from my destination, so I had perhaps ten more miles left. So, 80+ miles range at freezing temperatures but also at moderately high altitude (less dense air).
Temps around freezing, 70 miles at 55 mph and 1,000 ft of climbing on a single charge, good work! Pretty much just as expected!

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TonyWilliams
Posts: 10104
Joined: Sat Feb 19, 2011 1:48 am
Delivery Date: 02 May 2011
Leaf Number: 002244
Location: Vista, California USA
Contact: Website YouTube

Re: One more winter range post- 33*, 80% to 0 bars: 32.8 mil

Thu Dec 22, 2011 4:56 pm

Excellent data and detail. I hope others follow your example in posting range results. It looks like elevation offset your cool-ish battery.
Thanks,

Tony Williams
QC CHARGE
1497 POINSETTIA AVE
Suite 154
VISTA, CA 92081-8542 USA
Office M-F, 9-5pm Pacific Time
1-760-798-0342
1-844-EV-PARTS
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abasile
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Joined: Thu Sep 02, 2010 10:49 am
Delivery Date: 20 Apr 2011
Location: Arrowbear Lake, CA

Re: One more winter range post- 33*, 80% to 0 bars: 32.8 mil

Thu Dec 22, 2011 5:10 pm

dgpcolorado wrote:Results: I got the "low battery" warning about one mile from my destination, so I had perhaps ten more miles left. So, 80+ miles range at freezing temperatures but also at moderately high altitude (less dense air).
Congratulations on taking delivery of your LEAF!!! Looking forward to reading about your LEAFing around one of the most beautiful mountain areas in the US! (Thus far, the highest altitude I've reached in my LEAF is a bit over 7800', the summit of Keller Peak. You'll have me beat relatively soon.)
2011 LEAF at 71K miles, pre-owned 2012 Tesla S 85 at 98K miles
LEAF battery: 9/12 bars and < 49 Ah (-28% vs. new)
Tesla battery: 250+ miles of range (-5% vs. new)

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TonyWilliams
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Joined: Sat Feb 19, 2011 1:48 am
Delivery Date: 02 May 2011
Leaf Number: 002244
Location: Vista, California USA
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Re: One more winter range post- 33*, 80% to 0 bars: 32.8 mil

Thu Dec 22, 2011 8:25 pm

I can't find the all critical data point in your 70 mile trip; what was the mile/kWh?
Thanks,

Tony Williams
QC CHARGE
1497 POINSETTIA AVE
Suite 154
VISTA, CA 92081-8542 USA
Office M-F, 9-5pm Pacific Time
1-760-798-0342
1-844-EV-PARTS
1-844-387-2787

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evnow
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Delivery Date: 25 Feb 2011
Leaf Number: 303
Location: Seattle, WA

Re: One more winter range post- 33*, 80% to 0 bars: 32.8 mil

Thu Dec 22, 2011 9:03 pm

drees wrote:Temps around freezing, 70 miles at 55 mph and 1,000 ft of climbing on a single charge, good work! Pretty much just as expected!
Yes - I get about 4.4 or 4.5 when I don't use heater. With heater I get 3.3 to 3.6 m/kwh depending on the extent of heater use, preheating etc. So, I'd expect 70 miles without heater and 60 with heater (both till batt. low). This is in mixed freewayway/local roads (my home is 6 to 10 miles from the freeway).
1st Leaf : 2/28/2011 to 5/6/2013
2nd Leaf : 5/4/2013 to 3/21/2017
Volt : 3/25/2017 to 5/25/2018
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dgpcolorado
Posts: 3214
Joined: Sat Aug 20, 2011 1:56 pm
Delivery Date: 15 Dec 2011
Location: The Western Slope, Colorado

Re: One more winter range post- 33*, 80% to 0 bars: 32.8 mil

Fri Dec 23, 2011 4:40 pm

TonyWilliams wrote:I can't find the all critical data point in your 70 mile trip; what was the mile/kWh?
I didn't reset and record that figure (don't even know how). I'm new, so I'm still learning. I believe I worked my way up to ~3.6 but if it wasn't cleared from before the trip, it isn't that useful.

After the trip it took about 22.8 kwh at the wall, via 120V, to get back to 100%; I intended 80% but had the charge timer set wrong. Won't be making that mistake again.
Blue 2012 SV Dec 2011 to Feb 2016
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dgpcolorado
Posts: 3214
Joined: Sat Aug 20, 2011 1:56 pm
Delivery Date: 15 Dec 2011
Location: The Western Slope, Colorado

Re: One more winter range post- 33*, 80% to 0 bars: 32.8 mil

Fri Dec 23, 2011 4:50 pm

abasile wrote:
dgpcolorado wrote:Results: I got the "low battery" warning about one mile from my destination, so I had perhaps ten more miles left. So, 80+ miles range at freezing temperatures but also at moderately high altitude (less dense air).
Congratulations on taking delivery of your LEAF!!! Looking forward to reading about your LEAFing around one of the most beautiful mountain areas in the US! (Thus far, the highest altitude I've reached in my LEAF is a bit over 7800', the summit of Keller Peak. You'll have me beat relatively soon.)
I made it home today, at last. I have to get to 8000 feet to come and go from my house at 7670 feet.

The LEAF handled fairly well on cold (single digits to teens) snowpacked roads. I could only get it to skid for a fraction of a second before the anti-lock brakes kicked in. However, it took two tries for me to get up my challenging driveway and I only barely made it after a running start. I'm still mulling over snowtires, cable chains, or autosocks for driveway duty.
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ebill3
Posts: 1400
Joined: Fri May 27, 2011 1:23 pm
Delivery Date: 15 Sep 2011
Leaf Number: 7964
Location: Puyallup WA

Re: One more winter range post- 33*, 80% to 0 bars: 32.8 mil

Fri Dec 23, 2011 5:27 pm

dgpcolorado wrote:However, it took two tries for me to get up my challenging driveway and I only barely made it after a running start. I'm still mulling over snowtires, cable chains, or autosocks for driveway duty.
Try backing up your driveway. I realize the weight distribution is quite different, but years ago when we had unusual snow, that is the only way I could get a front wheel Honda up my rather long and steep snow packed driveway.

Bill
All electric - red LEAF, green Tesla S. No ICE.

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dgpcolorado
Posts: 3214
Joined: Sat Aug 20, 2011 1:56 pm
Delivery Date: 15 Dec 2011
Location: The Western Slope, Colorado

Re: One more winter range post- 33*, 80% to 0 bars: 32.8 mil

Fri Dec 23, 2011 6:17 pm

ebill3 wrote:
dgpcolorado wrote:However, it took two tries for me to get up my challenging driveway and I only barely made it after a running start. I'm still mulling over snowtires, cable chains, or autosocks for driveway duty.
Try backing up your driveway. I realize the weight distribution is quite different, but years ago when we had unusual snow, that is the only way I could get a front wheel Honda up my rather long and steep snow packed driveway.

Bill
That would be quite difficult since my 350 foot driveway is narrow, curves, as well as climbs. If I get off the shoveled surface I get stuck in deep snow. It is tough even to back down the driveway, with gravity helping, and the rear visibility in the LEAF isn't very good.
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