NorwaySoul
Posts: 2
Joined: Fri Jan 07, 2022 1:01 am

Do I have a chance?

Fri Jan 07, 2022 3:27 am

The battery on my 2015 Kia soul ev started showibg signs of reduced capacity in august. The dealer measured 85%. After that it went down all fall until it reached 72.4 dec 3rd. Since that they measure 72.4 evrery time.

Based on my mileage and how much the chargers give I think I am below 60 now (charging from 2% to 82% the charger gives 12.5 kWh which my my caclulations means 16 kWh to fill 100% of the battery).

Anything I can do? The warranty is 7 years in june, but I only have 250 km to reach max mileage

IanL
Posts: 268
Joined: Tue Feb 18, 2020 12:57 pm
Location: Jersey, English Channel Islands

Re: Do I have a chance?

Fri Jan 07, 2022 6:05 am

Allegedly, taking the battery down repeatedly to turtle, and charging fast to 100% will cause maximum deterioration.

EVDee
Posts: 76
Joined: Sun May 12, 2019 6:53 pm

Re: Do I have a chance?

Fri Jan 07, 2022 3:56 pm

Sure, but to what lengths are you willing to go?

Basically park that thing with a low state of charge and wait until the spring. You're not going to get an updated SoH until:

-Outside temp is 10C or higher
-You cycle the battery in a particular way to perform a battery recalibration

The cycle needs to be:
Full charge
Discharge to less than 18% (lower the better)
Fully charge without interruption

Good luck!

MassDeduction
Posts: 118
Joined: Tue Feb 25, 2020 3:24 pm

Re: Do I have a chance?

Sat Jan 08, 2022 1:31 am

NorwaySoul wrote:The battery on my 2015 Kia soul ev started showibg signs of reduced capacity in august. The dealer measured 85%. After that it went down all fall until it reached 72.4 dec 3rd. Since that they measure 72.4 evrery time.

Based on my mileage and how much the chargers give I think I am below 60 now (charging from 2% to 82% the charger gives 12.5 kWh which my my caclulations means 16 kWh to fill 100% of the battery).

Anything I can do? The warranty is 7 years in june, but I only have 250 km to reach max mileage

In addition to what others have said, fast charging and fast discharging are both bad for the battery pack. So if you DO charge it then charge it at the highest amperage you can, preferably exceeding 19 amp (and the more you exceed it by, the better). And if you do drive some of those remaining 250 km, try to do so with a lead foot (as much hard acceleration as you can fit in while observing the rules of the road and reasonable safety precautions).

NorwaySoul
Posts: 2
Joined: Fri Jan 07, 2022 1:01 am

Re: Do I have a chance?

Sun Jan 09, 2022 3:03 pm

EVDee wrote:Sure, but to what lengths are you willing to go?

Basically park that thing with a low state of charge and wait until the spring. You're not going to get an updated SoH until:

-Outside temp is 10C or higher
-You cycle the battery in a particular way to perform a battery recalibration

The cycle needs to be:
Full charge
Discharge to less than 18% (lower the better)
Fully charge without interruption

Good luck!


Find a parking garage with type 2 charger and leave it to chasrge to 100? I think the garage is above 10C

EVDee
Posts: 76
Joined: Sun May 12, 2019 6:53 pm

Re: Do I have a chance?

Mon Jan 10, 2022 1:12 am

NorwaySoul wrote:
EVDee wrote:Sure, but to what lengths are you willing to go?

Basically park that thing with a low state of charge and wait until the spring. You're not going to get an updated SoH until:

-Outside temp is 10C or higher
-You cycle the battery in a particular way to perform a battery recalibration

The cycle needs to be:
Full charge
Discharge to less than 18% (lower the better)
Fully charge without interruption

Good luck!


Find a parking garage with type 2 charger and leave it to chasrge to 100? I think the garage is above 10C


You're so tight on KM before warranty is up - I wouldn't risk it until it's warmer. For example while the documentation states that one of the conditions for recalibration is an ambient temperature of 10C or higher, I can't imagine they don't also factor in the temperature of the battery pack itself - and if that's the case..

I also suspect once you'll need to recalibrate again after they get a reading below 70% since they like to "update" the BMS to "fix" the issue which resets the SoH to 110%. So you may have to do this twice within your warranty coverage.

IanL
Posts: 268
Joined: Tue Feb 18, 2020 12:57 pm
Location: Jersey, English Channel Islands

Re: Do I have a chance?

Mon Jan 10, 2022 9:19 am

EVDee wrote:
I also suspect once you'll need to recalibrate again after they get a reading below 70% since they like to "update" the BMS to "fix" the issue which resets the SoH to 110%. So you may have to do this twice within your warranty coverage.


That has happened, but is expressly forbidden by KIA - just call the dealers attention to TSB PS548. Print a copy and insist the Reception attach it to the job instruction.

EVDee
Posts: 76
Joined: Sun May 12, 2019 6:53 pm

Re: Do I have a chance?

Mon Jan 10, 2022 7:03 pm

IanL wrote:
EVDee wrote:
I also suspect once you'll need to recalibrate again after they get a reading below 70% since they like to "update" the BMS to "fix" the issue which resets the SoH to 110%. So you may have to do this twice within your warranty coverage.


That has happened, but is expressly forbidden by KIA - just call the dealers attention to TSB PS548. Print a copy and insist the Reception attach it to the job instruction.


Despite that - I'd still bet money that they'll insist on needing to recalibrate the battery with the "fix" first before any battery replacement gets approved. They hold all the cards after all..

IanL
Posts: 268
Joined: Tue Feb 18, 2020 12:57 pm
Location: Jersey, English Channel Islands

Re: Do I have a chance?

Tue Jan 11, 2022 12:25 am

The dealer has nothing to gain by frustrating a chance for a new battery. He gets paid by KIA for fitting it. It is simply a question of getting the technician to understand the issue.

JejuSoul
Posts: 1662
Joined: Wed Jul 08, 2015 6:47 am
Location: Jeju
Contact: Website

Re: Do I have a chance?

Tue Jan 11, 2022 2:35 am

-
Don't drive the car any more than you have to.
You want to have enough km left on the odometer so that you can make two round trips to the Kia Service.

To get an accurate reading of the SOH you need the battery to recalibrate.
Take the car to a heated garage. Charge it to 100%
After charging has finished turn on the heater to max. Leave it running until the SOC is about 10%.
Then recharge to 100%.
It is the battery temperature that needs to be above 10C for recalibration to work.
The combination of heated garage, charging and discharging should ensure this.

Image

There's some more info here :- Battery Calibration
The codes for using Torque Pro can be found by clicking the link in the website icon under my user name on the left.

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