Billabob1234
Posts: 4
Joined: Wed May 23, 2018 7:42 pm
Delivery Date: 24 May 2018
Location: Allentown PA

Re: Buying a new (used) Leaf: How do I use Leaf Spy to evaluate a car?

Thu May 24, 2018 3:49 am

Thanks for the quick response LeftieBiker! Can you see the screenshot? What do you think about all of the red “shunted” cells?

My grand plan here is to use the leaf just as a commuter car and for local errands. My wife and I currently have two gas cars, and one needs to be replaced in the next few months. I have a 50 mile round trip commute, she has a 10 mile commute. I’d like to use the leaf until the battery degrades enough that it can’t make it that far, then we will trade.

I’m interested in an older (2012) 10 bar leaf because I could probably get it for $7k.

Does this sound like a reasonable plan? Thanks for your input!

User avatar
jlv
Posts: 760
Joined: Thu Apr 24, 2014 6:08 pm
Delivery Date: 30 Apr 2014
Leaf Number: 424487
Location: Massachusetts

Re: Buying a new (used) Leaf: How do I use Leaf Spy to evaluate a car?

Thu May 24, 2018 7:30 am

Billabob1234 wrote:Does this sound like a reasonable plan? Thanks for your input!
You need to fill out your location in your user profile. My 12-bar 2013 LEAF (AHr 57.23, SOH 87%) has a range of 72+ miles in the summer, 55+ miles in the winter. And that's only because I've mellowed out my driving style; if I hadn't, my range could easily be 30% less.

So a 50 mile round trip commute in an area with a real winter climate might be a challenge, unless you have the ability to charge at work. You need to provide more information to see if this is reasonable plan.
'13 SL+Prem (mfg 12/13, leased 4/14, bought 5/17) 31K miTesla S 75D (3/17) 20K mi
Model 3 reservation (invited to order 1/18)

Billabob1234
Posts: 4
Joined: Wed May 23, 2018 7:42 pm
Delivery Date: 24 May 2018
Location: Allentown PA

Re: Buying a new (used) Leaf: How do I use Leaf Spy to evaluate a car?

Thu May 24, 2018 8:59 am

jlv, I updated my profile, thanks. I'm in Allentown PA (Northeast), so we get fairly cold winters. Probably not as bad as Massachusetts though :D

I am fine with a mellow driving style.. It is concerning that your 12 bar leaf is only getting 55 miles in the winter though :/

Charging isn't an option at work at this time, and I don't think I should count on it being added in the future. Thanks for your input!

User avatar
jlv
Posts: 760
Joined: Thu Apr 24, 2014 6:08 pm
Delivery Date: 30 Apr 2014
Leaf Number: 424487
Location: Massachusetts

Re: Buying a new (used) Leaf: How do I use Leaf Spy to evaluate a car?

Thu May 24, 2018 10:37 am

55 miles when running the heat. In the summer I generally get about 4.3-4.5 mi/kWh; in the winter that can drop to 3.3-3.7 mi/kWh, depending upon how much I use the heat. And I don't use snow tires, which might take another 5%-10% off the range. My 2013 also has the hybrid heater with the heat pump, which a 2012 won't have (the hybrid heater is more efficient).

FWIW, the 55 miles came from what I can remember. If I do the math, however, 3.5 mi/kWh should give me about 63 miles of range, so I may not be remembering it very well.
'13 SL+Prem (mfg 12/13, leased 4/14, bought 5/17) 31K miTesla S 75D (3/17) 20K mi
Model 3 reservation (invited to order 1/18)

Billabob1234
Posts: 4
Joined: Wed May 23, 2018 7:42 pm
Delivery Date: 24 May 2018
Location: Allentown PA

Re: Buying a new (used) Leaf: How do I use Leaf Spy to evaluate a car?

Fri May 25, 2018 9:17 am

How do you calculate the range from mi/kWh? 24kW x 3.5 = 84 miles.

User avatar
jlv
Posts: 760
Joined: Thu Apr 24, 2014 6:08 pm
Delivery Date: 30 Apr 2014
Leaf Number: 424487
Location: Massachusetts

Re: Buying a new (used) Leaf: How do I use Leaf Spy to evaluate a car?

Fri May 25, 2018 9:58 am

24kWh (not kW) is when the car was new. But that's the total capacity, not the usable one: about 2kWh are reserved. Thus, when my car was new, Leaf Spy Pro would report 22.0kWh available. Of that, I could use just under 21kWh before the car went into "Turtle" mode.

Right now when my car is fully charged it has a 19.2kWh available, for which I used 18.0kWh as the capacity available for range.

18.0kWh * 3.5mi/kWh = 63.0 miles
18.0kWh * 4.3mi/kWh = 77.4 miles
'13 SL+Prem (mfg 12/13, leased 4/14, bought 5/17) 31K miTesla S 75D (3/17) 20K mi
Model 3 reservation (invited to order 1/18)

User avatar
jlv
Posts: 760
Joined: Thu Apr 24, 2014 6:08 pm
Delivery Date: 30 Apr 2014
Leaf Number: 424487
Location: Massachusetts

Re: Buying a new (used) Leaf: How do I use Leaf Spy to evaluate a car?

Fri May 25, 2018 10:19 am

Here's LSP after last night's drive home from work, where I fully charged. I used a total of 2.5kWh on the trip - I started at 19.2kWh and finished at 16.7kWh. (I stopped in the middle, so the second half used just 1.3kWh). LSP is telling me I've about 63 miles left if I drive at 4.3 mi/kWh, but that's to VLBW (very low battery warning). It shows 68.8 mi to turtle (I didn't take that screen shot), which works out to 16.0kWh usable remaining power. So my figure of 18.0 on a full charge is probably a bit low.

It shows I used 10.6 miles since I charged, but the car reports that value in integer km and LSP just converts it to miles; thus the value goes up in .625mi increments (the car is reporting 17km, or 10.625 miles). I really drove about 10.8 miles total, but LSP will never know that. :(

But you'll also notice that LSP tells me I only got 4.1 mi/kWh. The dash told me 4.2 mi/kWh (I generally reset the dash display every time I charge). I'm not sure where LSP got the 4.1, since 10.626 mi / 2.5 kWh = 4.25 mi/kWh.
Image
'13 SL+Prem (mfg 12/13, leased 4/14, bought 5/17) 31K miTesla S 75D (3/17) 20K mi
Model 3 reservation (invited to order 1/18)

Return to “New Members & Newbie Questions”