ialonso
Posts: 17
Joined: Fri Feb 01, 2013 10:08 am
Delivery Date: 21 Jan 2013

LeafSpy..less than 100% at full charge?

Wed Oct 16, 2013 6:37 pm

So, I purchased a BlueTooth OBDII reader and installed LeafSpy...WOW

with my used Leaf, with 12K in Houston, (had 4K when I bought it, car came from Atlanta) .I'm about to loose my 2nd bar it appears, I'm at 86% capacity remaining.


Yesterday I charged to 100% using the timer override button, and my SOC was 92% when I went to check the car in the morning.... Is this normal?
(Charged with 15amp 220v ClipperCreek charger)

Regardless of capacity is it supposed to reach 100% when fully charged?

I'm going to trickle charge tonight with the timer off. My variance at all points has been ok at >25mv

Thanks!

Weatherman
Posts: 916
Joined: Tue Aug 30, 2011 12:03 pm
Delivery Date: 08 Jul 2012
Leaf Number: 20922
Location: Weston, Florida

Re: LeafSpy..less than 100% at full charge?

Wed Oct 16, 2013 6:40 pm

Perfectly normal.

Typical maximum is somewhere around 95%, but the charge may stop at a much lower level if the battery is hot (at least that's what I've observed with my LEAF when the battery temp is in the 90s).
2013 Crystal Red Volt
2012 SV Glacier Pearl LEAF; turned in 5/12/2015:18.6K Miles:50.13 AHr:10 bars, 24% gone

bowthom
Posts: 657
Joined: Sun Jul 18, 2010 12:22 pm
Delivery Date: 23 Feb 2011
Leaf Number: 307
Location: Portland Oregon

Re: LeafSpy..less than 100% at full charge?

Wed Oct 16, 2013 6:46 pm

Hello,
If you are looking at the Leaf spy data for charge percent, it will always come up short of 100%. To preserve the life of the Li battery the leaf only uses the middle 84% of the total capacity. Life cycles of the battery are greatly reduced if using 100% of capacity. It was a common practice in the earlier times to only use the middle 80% of the battery's capacity, charging to 90% and discharging to 10%. Nissan pushed those limits a bit with the leaf charging to 94%.

I don't know why your battery is stopping at 92%. It might be thermally related. My leaf regularly charges to just over 94%.

Don
Reserv Apr 20 - Ord Aug 31
Red - ETEC trim
BLINK inst 3/14/11 (rev 2.1.2B)
P1213 4/29/11 - Charger repl 6/8/11
P1273 2/15/12 - P32270 10/2/13
TCU upgrd 2/15/17
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Deliver 2/23/11 - 75k+ mi

ialonso
Posts: 17
Joined: Fri Feb 01, 2013 10:08 am
Delivery Date: 21 Jan 2013

Re: LeafSpy..less than 100% at full charge?

Thu Oct 17, 2013 11:13 am

Thanks for the info. One follow question What is the percentage at which the car will reach the vlbw?

Thanks!

Turbo3
Gold Member
Posts: 2012
Joined: Mon Jul 19, 2010 8:34 pm
Delivery Date: 12 May 2011
Leaf Number: 002191
Location: San Jose, CA

Re: LeafSpy..less than 100% at full charge?

Thu Oct 17, 2013 11:43 am

24 Gids

User avatar
leafmealone
Posts: 49
Joined: Wed Dec 15, 2010 10:01 pm
Delivery Date: 20 Nov 2011
Location: Costa Mesa, CA

Re: LeafSpy..less than 100% at full charge?

Thu Oct 17, 2013 12:03 pm

I too bought the Leaf Spy Pro and loving it. My question is this: If VLB warning is at 24 GIDS, how many at turtle?

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

Re: LeafSpy..less than 100% at full charge?

Thu Oct 17, 2013 9:22 pm

leafmealone wrote:I too bought the Leaf Spy Pro and loving it. My question is this: If VLB warning is at 24 GIDS, how many at turtle?
Turtle isn't based on GIDs. It's based on the lowest cell pair voltage reaching about 2.9 volts.

That can happen between 4-8 Gid typically. The app should use 6 Gid as a relatively predictable middle ground to show zero miles remaining.

desiv
Posts: 594
Joined: Tue Jan 06, 2015 1:10 pm
Delivery Date: 04 Jan 2015
Leaf Number: 018850
Location: Lincoln City, Oregon

Re: LeafSpy..less than 100% at full charge?

Thu Jun 18, 2015 11:18 am

Didn't want a new topic just for this, and it seems close enough so thought I'd ask here..

How much flux is there in charging to FULL?
I've been NOT watching closely, but keeping an eye on my charge in the mornings.
I think (lots of soft words, because I wasn't logging/noting it) it's been around 95%, 94.x% usually since I got it 6 months ago.

I thought that maybe I was noticing some degradation (it is a 2012) the last week or so as I thought (again, not a scientific check there...) the max in the mornings was more like 93.x% and once a 92.x%.

But this morning, I get in the car and it's a 94.x% charge (all of these are via Leaf Spy Pro) again...
(Which made me happy, but confused.. ;-) )

So, is it just common that max at full will vary 3% or so (totally random number, not based on any data!!)??

Just wondering..

desiv
2012 Leaf SL - Silver (gone - traded in)
2017 Bolt LT - Red

dhanson865
Moderator
Posts: 1498
Joined: Wed May 25, 2011 7:12 am
Leaf Number: 16156
Location: Tennessee

Re: LeafSpy..less than 100% at full charge?

Thu Jun 18, 2015 11:42 am

Well I've only had my 2012 SL for a month or so but I've never even hit 93% on a full charge, I always stop at 92.x%. Not sure if I've done more than 92.7 or not as I didn't log them all.

If Weatherman is right and it is temperature limited then maybe I'll get an extra percent charge come winter to offset the heater use somewhat.
Blue 2012 Leaf 195/65/15 tires, 15" Rims
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Turbo3
Gold Member
Posts: 2012
Joined: Mon Jul 19, 2010 8:34 pm
Delivery Date: 12 May 2011
Leaf Number: 002191
Location: San Jose, CA

Re: LeafSpy..less than 100% at full charge?

Thu Jun 18, 2015 12:13 pm

Keep in mind that SOC is not a direct indication of the energy in the battery. Just how full the battery is. As the battery ages it can hold less and less energy.

My 2011 when set to charge to 100% actually just charged to an SOC 91.71% but that is only 205 Gids or about 73% of the original capacity.

When new SOC was around 95% at full charge. So if you just looked at SOC change I have lost only 3.29% which is obviously not the case.

As a Leaf gets older SOC is of less and less value.

It does benefit Nissan as customers can not really see battery degradation in the SOC number now displayed on the dash. Someone buying a second hand Leaf would probably look at the SOC at full charge and think everything is still ok.

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