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Math doesn't work

Posted: Mon Dec 24, 2018 1:28 pm
by bgarr33434
My 2015 Kia Souk EV w 36,000 miles shows 23.1kwh soh. I'm averaging 4.0 miles per kwh. So why does my gom say 65 miles range when 100% charged? It should be in the low 90s. The car is one month new to me. Also max deterioration is 98%, so I have at least one pair of cells at about zero. Can they be replaced?

Re: Math doesn't work

Posted: Tue Dec 25, 2018 1:17 pm
by Kish
Mat det at 98% is concerning. Your battery pack has become extremely unbalanced, thus BMS leading to spit out 65 miles on the GOM. Try running down your battery to 0% and see what you get?

Or else you could go to the dealer and get a SOH report (~$120). That's the only way to check for sure. If it's under warranty conditions, the pack will be replaced under warranty. Otherwise you're stuck waiting until it gets worse.

Re: Math doesn't work

Posted: Thu Dec 27, 2018 5:29 pm
by bgarr33434
Thanks for responding! Yes, car has about 18 months of warranty remaining. I'm the second owner....First was a lease, I did get a SOH when the local dealer did some warranty work. 87%. I'll try to figure out when I can run the battery down. What should I expect will happen?

Re: Math doesn't work

Posted: Thu May 09, 2019 6:09 am
by bgarr33434
Image

I'm now getting 64 mile range from a full charge. Does this SOH make sense?

Re: Math doesn't work

Posted: Thu May 09, 2019 7:09 am
by JejuSoul
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Max deterioration at 98% is either a glitch, or more likely it means one of the cells has failed.
The battery will need to be repaired / replaced.
In both previous cases Kia has just replaced the entire battery, rather than try to repair just a single cell.

If you download and install the soulspy app there is a voltage heatmap.
This should show you the faulty cell fairly easily.

I have a 2011 Hyundai BlueON Electric with a single faulty cell.
When charging that cell stands out because its voltage is much higher than the others. See pic below - cell 61 is the bad cell.
When driving that cell stands out because its voltage is much lower than the others.

Image

Re: Math doesn't work

Posted: Mon Jul 08, 2019 3:28 pm
by bgarr33434
Kia just replaced my battery under warranty with a 28.8 kWh battery. Not sure if that is the 111 or 90 mile battery. 28.8 x 4 miles per kWh is 112 mile range.

Re: Math doesn't work

Posted: Mon Jul 08, 2019 9:15 pm
by JejuSoul
bgarr33434 wrote:Kia just replaced my battery under warranty...

Can you tell us whether the Torque app sees 100 cells which is the 2018 30kWh pack, or 96 cells which is the 2016 27kWh pack.

Re: Math doesn't work

Posted: Tue Jul 09, 2019 12:03 pm
by bgarr33434
I won't have the car back for another week or so. Because I live in Florida, where there are zero authorized Kia EV mechanics, my EV is in North Carolina. It still has to be tested and then shipped back to me.

Re: Math doesn't work

Posted: Tue Jul 09, 2019 2:09 pm
by ksoul2084
bgarr33434 wrote:I won't have the car back for another week or so. Because I live in Florida, where there are zero authorized Kia EV mechanics, my EV is in North Carolina. It still has to be tested and then shipped back to me.

This is very interesting to me as I am in Calgary, Alberta and there are no EV authorized KIA dealers in Alberta either.

Could you describe how you went about getting the car tested, etc. in order to receive the warranty replacement?

Did you take it to an local non-EV authorized dealer and they arranged for shipment, etc. or did you transport it yourself to the EV-authorized dealer?