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Re: Battery Ageing Model

Posted: Fri Mar 15, 2019 9:51 pm
by bitterest
JejuSoul wrote:
bitterest wrote:...
So - any thoughts on how my stats compare to the cohort of other Soul EVs?
...

In the graph below your car is roughly marked with the purple cross.

Thanks - results as expected.

What reporting frequency is useful for your project so I can contribute in the future?

Re: Battery Ageing Model

Posted: Fri Apr 19, 2019 3:46 am
by JejuSoul
-
Some more cars needing replacement batteries -

In Norway a 2015 - What year is your kia soul ev, how many km do you have?
Thor A Halvorsen wrote:... got a new battery at about 120 000km. SOH about <70%


In Slovenia a 2015 - What year is your kia soul ev, how many km do you have?
Robert Kaltnekar wrote:... My battery was replaced (67% SOH at 136.000km)...mostly AC charged... My daily commute is 170km...



---------------------------------------------

And some cars doing well

In Germany a 2015 - Kia Soul mit 89% SOH
Tschuti wrote:... Der Verkäufer hatte heute das 75.000 und 89% SOH...


In Germany a 2015 - Kia Soul mit 89% SOH
Sola rman wrote:...Heute mit Torque gemessen. 27er Soul (produziert Feb. 2015), 102'000km 95.1% SOH...

Re: Battery Ageing Model

Posted: Wed Apr 24, 2019 1:40 am
by Javi
And 2 more from Spain.
Also one more from Canary Islands.

Only have this.
Image

This week the change is accepted.

Re: Battery Ageing Model

Posted: Wed Apr 24, 2019 8:40 pm
by JejuSoul
Javi wrote:And 2 more from Spain.
Also one more from Canary Islands.
...
This week the change is accepted.
Javi - Can you explain this comment or provide a link where we can see more information.
I'm guessing this is about battery replacements, but the image you post shows 89.8% SOH which is no way near the 70% required for a replacement.

----------------------------

Here's an interesting and well written article about battery health :- The Secret Life Of An EV Battery

Re: Battery Ageing Model

Posted: Wed Apr 24, 2019 9:19 pm
by Oinq
JejuSoul wrote:Here's an interesting and well written article about battery health :- The Secret Life Of An EV Battery


Indeed it's a very good article!

Re: Battery Ageing Model

Posted: Tue May 14, 2019 7:26 am
by JejuSoul
-
Here's an unusual DIY fix for a degraded battery.
Put a replacement 60kWh battery from a wrecked B olt EV into the boot.

Image

Image

From Jordanian Facebook page

Re: Battery Ageing Model

Posted: Tue May 21, 2019 6:33 am
by JejuSoul
-
The country with the best climate for the Soul EV seems to be France.
4 of the top 10 ten cars with least battery degradation are in France.
Look here and be impressed - Forum • SOH de nos Soul EV dans le temps et les km (à épingler)

Seen below the GOM of a July 2015 27kWh Soul EV after 107,427km
Image

The deterioration stats include -
Teirhy - 60,000 km - 101.3% SOH
Gepeliste - 107,427 km - 94.5% SOH
CedSoul - 62,000 km - 100.7% SOH

All 3 of these will not reach the warranty limit until after 275,000km.

Re: Battery Ageing Model

Posted: Tue May 21, 2019 7:23 am
by Oinq
I'm in the border with them :D

Re: Battery Ageing Model

Posted: Tue May 21, 2019 2:24 pm
by wizziwig
Found this thread via google and have studied some of your results. I'm a bit confused about the cumulate energy charged/discharged (CED/CEC) counters reported by Torque.

Shouldn't these numbers agree with the trip computer results reported by the car?

For example, using data from this old post:

Kish wrote:I did a drain/range test. Looks like the answer is "no" to my question earlier. I was able to drive a total of 81.2 miles to 1% SOC, at 80 mph (2.5 mi/kWh). The last 10 miles or so was at slower speed (55 mph). My SOH in Torque (110%) was unchanged after a full recharge to 100%.

Let's calculate the kWh actually used/recharged on the car's end:

Before driving:
CEC: 208 kwh
CED: 198 kwh

After driving:
CEC: 210 kwh
CED: 226 kwh

After charging:
CEC: 237 kwh
CED: 226 kwh

kWh used while driving
= total kWh discharged - total kWh charged (regen)
= (226 kWh - 198 kWh) - (210 kWh - 208 kWh)
= 28 kWh - 2 kWh
= 26 kWh

kWh used to charge
= CEC (after charging) - CEC (before charging).
= 237 kWh - 210 kWh
= 27 kwh


Using above numbers would suggest an efficiency of 81.2 miles / 26 kWh = 3.12 miles / kWh. Yet the owner reported that the car's trip computer reported an efficiency of only 2.5 mi/kWh. So why the difference and which number is correct?

Re: Battery Ageing Model

Posted: Tue May 21, 2019 3:32 pm
by notfred
The trip computer includes a number (I forget exactly how many, I think it is in the manual) of previous trips. The BMS numbers are the more accurate ones.