LeftieBiker
Moderator
Posts: 10973
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: Reset Capacity Bars

Thu Feb 14, 2019 7:28 pm

Very roughly, I'd say ~95%. And Hx tends to diverge more (at least in the 24kwh packs) as more time and miles pass between full charges. The balance chart in LeafSpy would probably be pretty ragged. Has this car has the 30kwh BMS software update?
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

DaveinOlyWA
Posts: 13638
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: Reset Capacity Bars

Fri Feb 15, 2019 9:57 am

BuckMkII wrote:I don't know...that's a pretty big delta between the SOH and the Hx, isn't it? If Hx recalibrates faster than SOH as stated above in this thread, wouldn't this be a sign of a reset? Mine bounce around a bit, but the biggest difference I can find is < 6%. It's usually about 5% over the last six months, up from a couple % when I first got the car.

Anyone have a prediction of what the SOH *should* be after sitting on the lot (probably at 100% SOC) for over a year, then two years of normal service in that climate?


A lot of cars here have quite a big variance. TBT; there is no one that really knows what Hx is or what it means when it starts to stray from the rest of the numbers. Sometimes, top end balancing helps, sometimes it doesn't.
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 15,000 miles, 478 GIDs, 37.0 kwh 109.81 Ahr , SOH 94.61, Hx 120.15
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

Leaf15
Posts: 106
Joined: Sat Jun 09, 2018 6:51 am
Delivery Date: 09 Jun 2018
Location: Pennsylvania, USA

Re: Reset Capacity Bars

Sat Feb 16, 2019 3:02 am

arnis wrote:Whoever is buying second-hand Leaf should test the range on highway.
It only takes an hour :)
So true, highway (>50 mph) would kill any EV with high Cd > 0.24 in no time. Low Cd EVs rule on highway.
Leaf 2015 SV CPO traded for 2019 Hyundai Ionic Limited

SageBrush
Posts: 3468
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: Colorado

Re: Reset Capacity Bars

Sat Feb 16, 2019 7:20 am

Leaf15 wrote: Low Cd EVs rule on highway.

I'll take low Cd AND a larger battery, thanks.
2013 LEAF 'S' Model with QC & rear-view camera
Bought off-lease Jan 2017 from N. California
Car is now enjoying an easy life in Colorado
03/2018: 58 Ahr, 28k miles
11/2018: 56.16 Ahr, 30k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

johnlocke
Posts: 329
Joined: Fri Jan 08, 2016 3:47 pm
Delivery Date: 14 Dec 2015
Leaf Number: 300582

Re: Reset Capacity Bars

Mon Feb 18, 2019 8:49 am

Leaf15 wrote:
arnis wrote:Whoever is buying second-hand Leaf should test the range on highway.
It only takes an hour :)
So true, highway (>50 mph) would kill any EV with high Cd > 0.24 in no time. Low Cd EVs rule on highway.

CD isn't everything. CD X Cross Section = Drag. I wonder why no one publishes their cross section numbers or total drag at a given speed ( 60m/h)?
2016 SV, New battery at 45K mi.
Jamul, CA
San Diego East County

Leaf15
Posts: 106
Joined: Sat Jun 09, 2018 6:51 am
Delivery Date: 09 Jun 2018
Location: Pennsylvania, USA

Re: Reset Capacity Bars

Mon Feb 18, 2019 7:01 pm

johnlocke wrote:CD isn't everything. CD X Cross Section = Drag. I wonder why no one publishes their cross section numbers or total drag at a given speed ( 60m/h)?
Correct, but Cd is commonly accepted criteria when comparing. That is all we have or they disclose to us. It is still the most important parameter of overall aerodynamic design. The Cross Section comes in play when modifications are made to increase or reduce standard configuration cross section. Like upgrading 16-to-17 tires - would increase cross section, downgrading 16-to-15 will reduce it and etc. Some folks may find it difficult to understand because of they think the tire outer diameter stays almost the same. The inefficiency drop comes from the fact you have to put wider tires to compensate for side wall height reduction and it increases cross section. It is the most critical though in EV as range takes way more time to extend by more frequent re-charging unlike in ICE. That is when I see EV adaptation of the existing ICE car it is just failure from the get go. Only good for city driving, forget about highways.

I needed no proof of poor aerodynamics of Leaf once I got it above 55 mph - that is pretty much the end of the range, get ready to half it. And God forbid to have a head wind, butt wind helps a bit. Nothing wrong with Leaf, I think it was design for city dwellers and it is pretty good at it. But as they put bigger and bigger batteries I am not sure what they are trying to achieve - it would never be reasonable on the highway without major redesign and this is where long range matters. Perhaps, they think of Taxi in the city to consume this range at relatively low speeds.
Leaf 2015 SV CPO traded for 2019 Hyundai Ionic Limited

LeftieBiker
Moderator
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Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: Reset Capacity Bars

Mon Feb 18, 2019 7:35 pm

But as they put bigger and bigger batteries I am not sure what they are trying to achieve - it would never be reasonable on the highway without major redesign and this is where long range matters.


The did lower the 2018 by 2", and I THINK they made the wheel wells smaller. At any rate it seems more efficient at 60-65MPH than the original Leaf.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

SageBrush
Posts: 3468
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: Colorado

Re: Reset Capacity Bars

Mon Feb 18, 2019 7:37 pm

johnlocke wrote:
Leaf15 wrote:
arnis wrote:Whoever is buying second-hand Leaf should test the range on highway.
It only takes an hour :)
So true, highway (>50 mph) would kill any EV with high Cd > 0.24 in no time. Low Cd EVs rule on highway.

CD isn't everything. CD X Cross Section = Drag. I wonder why no one publishes their cross section numbers or total drag at a given speed ( 60m/h)?

I know the CdA for the Model 3, Model S, Prius Prime and Bolt, although I cannot remember where I got them from. More data is available from the web; I remember a car magazine reporting a comparo of a couple of cars that also included the Prius and Model S, amongst others.
2013 LEAF 'S' Model with QC & rear-view camera
Bought off-lease Jan 2017 from N. California
Car is now enjoying an easy life in Colorado
03/2018: 58 Ahr, 28k miles
11/2018: 56.16 Ahr, 30k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

Leaf15
Posts: 106
Joined: Sat Jun 09, 2018 6:51 am
Delivery Date: 09 Jun 2018
Location: Pennsylvania, USA

Re: Reset Capacity Bars

Tue Feb 19, 2019 3:41 pm

There was some nice convenient tech specs table with Cd of the EVs, but I lost track of it too. Tesla Cd are <= .24, Ionic .24 and Leaf Cd .29 it is the same as most cross-overs and similar to e-tron, bolt, i-pace, Soul, Kona, Niro EVs. Sedans Cd ~ .28 usually.
Leaf 2015 SV CPO traded for 2019 Hyundai Ionic Limited

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