arnis
Posts: 742
Joined: Sat Jan 23, 2016 3:21 pm
Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

Re: 2014 Battery Stats

Sat Oct 28, 2017 4:33 pm

My 2014 Leaf passed 100 000 km today.
Degradation numbers and comments posted here:
viewtopic.php?f=31&t=13371&p=509545#p509545

I would recommend people to start ignoring small capacity SOH Hx variations.
I observe +/- 2% fluctuation all the time. They are meaningless. Values drift off if
cell voltages are kept between 3-4V. And they also drift off if battery temperature
is not between 20-30C. Both ways numbers go crazy.
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
Charging: Trickle <3kW -- Normal 3-22kW -- Fast 50-100kW -- Supercharging >100kW

jamieo
Posts: 106
Joined: Thu Feb 19, 2015 10:01 am
Delivery Date: 21 Feb 2015
Leaf Number: 330288
Location: Memphis Area, West Tennessee

Re: 2014 Battery Stats

Tue Oct 31, 2017 5:18 am

The weather has cooled off here, and I took a reading this morning:

October 31, 2017 AHr=58.02 SOH=88% 382.57V Hx=88.19 37,307 miles 16 QCs & 1,293 L1/L2s

for comparison, these are the values for a little under a year ago:

November 6, 2016: AHr=58.31 SOH=89% Hx=88.33% 384.86 V 22,934 miles 14 QCs and 890 L1/L2s


The battery is holding strong.... in spite of this Mid-South Climate

pyromancy5
Posts: 94
Joined: Mon Apr 03, 2017 6:17 pm
Delivery Date: 01 Apr 2017
Leaf Number: 337249

Re: 2014 Battery Stats

Wed Nov 01, 2017 5:53 am

pyromancy5 wrote:
jamieo wrote:
pyromancy5 wrote:
Manufactured 3/14, in-service 6/14. I purchased it used in April of this year. It spent it's first 2 years/ 28k mi in Atlanta, then 6 months/ 8k mi in Ohio before I took ownership.

SOH 6 months ago when I purchased it was 84%. Now it seems to be falling fairly quickly. I'm questioning if I should treat it well, or neglect it and try to get a warranty replacement since I have 19 months left to go under warranty.


It's interesting that your car is a little "younger" than mine and has experienced so much more degradation. Mine has a manufacture date of 1/14 and I got it in February of 2015.

I don't have any advice about racing to drop bars to get a warranty replacement however. I am not sure what I would do in that situation myself.


I've made up my mind to try and push it over the edge. This spring / summerI can park on the roof of my work garage so it is in the sun (thank you Nissan connect for letting me turn on AC as I leave the office), keep it charged up at night, and drive it in B mode as much as possible to cycle the battery more. Maybe hit the free QC on hot days since it's near a grocery store.



Well, after 2 weeks of keeping the car charged up most of the time, my SoH is up to 82% from 78% :lol: :lol: :lol:

Not sure if this is due to colder weather moving in, better cell balancing from living at higher soc for a week, or what. I'm just gonna drive it and see what happens to the battery next summer.
2014 Leaf SL

jamieo
Posts: 106
Joined: Thu Feb 19, 2015 10:01 am
Delivery Date: 21 Feb 2015
Leaf Number: 330288
Location: Memphis Area, West Tennessee

Re: 2014 Battery Stats

Wed Nov 01, 2017 6:49 am

pyromancy5 wrote:
pyromancy5 wrote:
jamieo wrote:
It's interesting that your car is a little "younger" than mine and has experienced so much more degradation. Mine has a manufacture date of 1/14 and I got it in February of 2015.

I don't have any advice about racing to drop bars to get a warranty replacement however. I am not sure what I would do in that situation myself.


I've made up my mind to try and push it over the edge. This spring / summerI can park on the roof of my work garage so it is in the sun (thank you Nissan connect for letting me turn on AC as I leave the office), keep it charged up at night, and drive it in B mode as much as possible to cycle the battery more. Maybe hit the free QC on hot days since it's near a grocery store.



Well, after 2 weeks of keeping the car charged up most of the time, my SoH is up to 82% from 78% :lol: :lol: :lol:

Not sure if this is due to colder weather moving in, better cell balancing from living at higher soc for a week, or what. I'm just gonna drive it and see what happens to the battery next summer.


good luck!! haha!!

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