krox
Posts: 67
Joined: Wed Sep 14, 2016 12:46 pm
Delivery Date: 14 Sep 2013
Location: Ukraine

Re: Leaf Spy and Leaf Spy Pro

Sun Jan 21, 2018 4:52 am

Thank you. There is still a very important question!
When buying a car (it's already different), SOH was 81% and there was no 12th sticks of battery capacity. After operating for six months - SOH "grew" to 87%, but the 12th stick of the capacity of the battery never appeared! Why is that? When the 12th wand appears, what should I do? Diagnosis of the modules is "Sells OK" (damaged - no).

GerryAZ
Gold Member
Posts: 2294
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: Leaf Spy and Leaf Spy Pro

Sun Jan 21, 2018 11:05 am

krox wrote:Thank you. There is still a very important question!
When buying a car (it's already different), SOH was 81% and there was no 12th sticks of battery capacity. After operating for six months - SOH "grew" to 87%, but the 12th stick of the capacity of the battery never appeared! Why is that? When the 12th wand appears, what should I do? Diagnosis of the modules is "Sells OK" (damaged - no).
There is enough "deadband" programmed into the bar display to keep the capacity bars from flickering on and off so it is not likely that the 12th bar will return. Just drive the car and enjoy it as long as the range meets your needs.
Gerry
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015; traded 8/10/2019 at 82,436 miles
White LEAF 2019 SL+ purchased 8/10/2019

User avatar
jlv
Moderator
Posts: 1159
Joined: Thu Apr 24, 2014 6:08 pm
Delivery Date: 30 Apr 2014
Leaf Number: 424487
Location: Massachusetts

Re: Leaf Spy and Leaf Spy Pro

Mon Jan 22, 2018 8:10 am

It seems like AHr (when fully charged) is a better indicator of the remaining battery capacity than SOH or Hx.
LEAF '13 SL+Prem (mfg 12/13, leased 4/14, bought 5/17, sold 11/18) 34K mi, AHr 58, SOH 87%
Tesla S 75D (3/17)
Tesla X 100D (12/18)
85K 100% BEV miles since '14
ICE free since '18

WetEV
Posts: 3205
Joined: Fri May 04, 2012 8:25 am
Delivery Date: 16 Feb 2014
Location: Near Seattle, WA

Re: Leaf Spy and Leaf Spy Pro

Mon Jan 22, 2018 10:28 am

jlv wrote:It seems like AHr (when fully charged) is a better indicator of the remaining battery capacity than SOH or Hx.
Ahr is no better. Go back a few posts and look at the screenshot I posted. Almost 38k miles, and "like new" Ahr.
WetEV
#49
Most everything around here is wet during the rainy season. And the rainy season is long.
2012 Leaf SL Red (Totaled)
2014 Leaf SL Red
2019 eTron Blue

User avatar
jlv
Moderator
Posts: 1159
Joined: Thu Apr 24, 2014 6:08 pm
Delivery Date: 30 Apr 2014
Leaf Number: 424487
Location: Massachusetts

Re: Leaf Spy and Leaf Spy Pro

Mon Jan 22, 2018 10:52 am

WetEV wrote:
jlv wrote:It seems like AHr (when fully charged) is a better indicator of the remaining battery capacity than SOH or Hx.
Ahr is no better. Go back a few posts and look at the screenshot I posted. Almost 38k miles, and "like new" Ahr.
When I looked at your screenshot, my brain read "56" not "65", so I thought it made sense. But I was obviously wrong! Maybe you've stumbled on a way to bring back battery capacity. :?
LEAF '13 SL+Prem (mfg 12/13, leased 4/14, bought 5/17, sold 11/18) 34K mi, AHr 58, SOH 87%
Tesla S 75D (3/17)
Tesla X 100D (12/18)
85K 100% BEV miles since '14
ICE free since '18

WetEV
Posts: 3205
Joined: Fri May 04, 2012 8:25 am
Delivery Date: 16 Feb 2014
Location: Near Seattle, WA

Re: Leaf Spy and Leaf Spy Pro

Mon Jan 22, 2018 11:20 am

jlv wrote:
WetEV wrote:
jlv wrote:It seems like AHr (when fully charged) is a better indicator of the remaining battery capacity than SOH or Hx.
Ahr is no better. Go back a few posts and look at the screenshot I posted. Almost 38k miles, and "like new" Ahr.
When I looked at your screenshot, my brain read "56" not "65", so I thought it made sense. But I was obviously wrong! Maybe you've stumbled on a way to bring back battery capacity. :?
No. Yesterday's numbers are 60.49AHr, SOH 92% Hx 92.82% 39,535 miles.

Based on trends and a recharge test a few months ago, I think the battery is down 10%. Plus or minus a few percent.

The thing to remember is that you are looking at the car's estimate, which can be in error both ways by at least a few percent even if you don't take long trips with multiple QC sessions. Temperature, driving habits, charging habits can all change the estimated capacity, and I don't think will change the actual capacity of the battery by much.
WetEV
#49
Most everything around here is wet during the rainy season. And the rainy season is long.
2012 Leaf SL Red (Totaled)
2014 Leaf SL Red
2019 eTron Blue

krox
Posts: 67
Joined: Wed Sep 14, 2016 12:46 pm
Delivery Date: 14 Sep 2013
Location: Ukraine

Re: Leaf Spy and Leaf Spy Pro

Mon Jan 22, 2018 11:13 pm

Is there any statistics, at what capacity of the battery (or at what SOH) will the 12th stick of battery capacity light up again?

cwerdna
Posts: 9811
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: Leaf Spy and Leaf Spy Pro

Mon Jan 22, 2018 11:19 pm

krox wrote:Is there any statistics, at what capacity of the battery (or at what SOH) will the 12th stick of battery capacity light up again?
I don't know of any. It doesn't matter anyway. Even if it comes back, it seems to eventually (in the near future) go away again, permanently.

My 12th bar went away near end of Nov 2017 when SOH was down to 83% (http://www.mynissanleaf.com/viewtopic.p ... 15#p511915). I've not once seen it come back, even if my SOH rose to 85% or so.

'19 Bolt Premier
'13 Leaf SV w/premium package (owned)
'13 Leaf SV w/QC + LED & premium packages (lease over, car returned)

Please don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

tgeliot
Posts: 23
Joined: Fri May 26, 2017 8:09 pm
Delivery Date: 20 May 2017

Re: Leaf Spy and Leaf Spy Pro

Thu Jan 25, 2018 10:42 pm

I am trying to automate charging my Leaf to only 80% using my home Openevse.

Here's what I have:
USB dongle (whatever it was that was recommended with Leaf Spy).
Leaf Spy Lite (but I'll be buying Pro if it can help me on this)
Openevse EVSE unit
Wifi board for Openevse.

So on my phone I have the SOC information (in Leaf Spy), and the ability to connect to the Openevse and set the KWH charge limit.
What I don't have is a way to communicate between Leaf Spy the Openevse web page, and do the little bit of math necessary to convert current SOC into the appropriate charge limit instruction.

Has anyone already tried something like this, or any other way to automate the 80% charge limit?

I should add that while I am not facile at Android app development, I am a professional software "engineer" (I cringe whenever I hear that) and am comfortable with learning new technologies.

Thanks

User avatar
lpickup
Posts: 1170
Joined: Thu Nov 17, 2011 2:14 pm
Delivery Date: 09 Dec 2011
Leaf Number: 16138
Location: Raleigh, NC
Contact: Website

Re: Leaf Spy and Leaf Spy Pro

Fri Jan 26, 2018 10:11 am

tgeliot wrote:I am trying to automate charging my Leaf to only 80% using my home Openevse.
I had suggested to someone that potentially had more time on their hands that was working on OpenEVSE that they add a Bluetooth module and have the EVSE itself connect to the vehicle's OBDII adapter and control charging directly within the EVSE itself. This is probably the best solution to the problem, but involves hardware/software mods to the EVSE.

Your suggested approach would likely either require a modification to LeafSpy itself to dump charging data somewhere where you could read it (I'm not sure if the dropbox integration is "live" during charging or whether it dumps data from a charging session at the conclusion of charging, or if it even dumps that stuff to dropbox at all (sorry, I haven't played with that aspect of the app much).

Another approach using LeafSpy would be to take advantage of the fact that it does dump data into the Android file system. I suppose you could write a second app that monitored that and then sent a signal to a server you control that would then send a signal to your OpenEVSE.

But if it were me, the approach I would use would be to just use the LEAF telematics (assuming that's not an issue for you with respect to TCU upgrades and cell coverage). When you are charging you would kick off a program that requested SOC from NissanConnect. 15 minutes later you would send another request and from there estimate how long until your vehicle reaches 80% SOC. If you wanted to get precise, you could time several more requests just before that time to get it precisely at 80%, but it's probably not that important to get it that close. Once you detect an 80% (or close enough) SOC, your program then sends its signal to OpenEVSE to halt charging.
...Lance

Deep Blue Metallic 2018 Tesla Model 3 (31849) (delivered: 7/13/18)
Coulis Red 2016 SV (312310) (bought: 12/23/16 sold: 7/5/18)
Glacier Pearl 2012 SL (016138) (delivered: 12/9/11; traded in 12/23/16)
NOGA$4ME Blog

Return to “LEAF CANBus”