JejuSoul
Posts: 1238
Joined: Wed Jul 08, 2015 6:47 am
Location: Jeju
Contact: Website

Comparing Hyundai / Kia Electric Vehicle Batteries

Fri Jun 08, 2018 11:16 pm

-
The list of emergency manuals for Kia's Electric Vehicles is here - : Kia Emergency Response Guides
And for Hyundai - : Hyundai Emergency Response Guides

These have a lot of useful details about the car.
I am pairing off the cars I think have the same batteries.
In order of newest cars first.

---------------------------
1/ Kia N iro PHEV and Hyundai I oniq PHEV
I think these have an SK Innovation battery.
Both cars 96 cells * 3.75V * 24.7Ah = 8.9kWh

Image

Image

---------------------------
2/ Kia N iro HEV and Hyundai I oniq HEV
I think these have an LG Chem battery.
Both cars 64 cells * 3.75V * 6.5Ah = 1.56kWh

Image

Image

---------------------------
3/ Kia O ptima PHEV and Hyundai S onata PHEV
I think these have an LG Chem battery.
Both cars 96 cells * 3.75V * 27.2Ah = 9.8kWh

Image

Image

---------------------------
4/ Hyundai S onata HEV , Kia O ptima HEV , Kia Cadenza HEV and Hyundai Grandeur HEV
I think these all have the same LG Chem battery.

The cars have 72 cells * 3.75V laid out in 9 modules. Later models have a newer more energy dense cell.

2016 S onata HEV - 72 cells * 3.75V * 5.3Ah = 1.43kWh. The pack weighs 93lb.
2017 O ptima HEV - 72 cells * 3.75V * 6.0Ah = 1.62kWh

Image

Image

The 2018 O ptima HEV has a 1.76kWh battery. - see Optima Hybrid Specs
The 2018 S onata HEV also has a 1.76kWh battery. - see : 2018 Hyundai Sonata Hybrid, Plug-In Hybrid released at Chicago auto show
There is also a 2018 Cadenza HEV that has a 1.76kWh battery. - see : 2018 Kia Cadenza Hybrid Goes Official In South Korea As K7 Hybrid
The 2018 Grandeur Hybrid has the same 1.76kWh battery. - see : Korean Car wiki

The latest 2018 battery packs are 72 cells * 3.75V * 6.5Ah = 1.76kWh. The pack weighs 93lb.

---------------------------
Last edited by JejuSoul on Tue Jun 12, 2018 11:09 pm, edited 1 time in total.
The codes for using Torque Pro can be found by clicking the link in the website icon under my user name on the left.

JejuSoul
Posts: 1238
Joined: Wed Jul 08, 2015 6:47 am
Location: Jeju
Contact: Website

Re: Comparing Hyundai / Kia Electric Vehicle Batteries

Tue Jun 12, 2018 7:04 am

-
The latest Hybrid vehicles all use 6.5Ah cells. This will be usable capacity.
The N iro and I oniq HEVs use 64 of these cells for the High Voltage battery.
The S onata, O ptima, Cadenza and Grandeur HEVs use 72 of these cells for the High Voltage battery.

The I oniq and N iro HEVs additionally use 8 Lithium-ion cells for the 12V battery.

Image

Image

The graphic below is from a presentation by Jerome Gregeois at the Public workshop on Lead-Acid Batteries and Alternatives : Beyond the Car.
The meeting was organized by CalEPA on November 6,  2017, in Sacramento, California.
Ioniq HEV & Niro HEV presentation

Image

The Hybrid battery for the I oniq Hev is also discussed
here - Setting up Torque to show BMS data
and here - Comparing layout of the Soul EV battery with other EVs

The cells used are rated 6,5A. Perhaps the actual cells used are these with a total capacity of 7.5A

Image
The codes for using Torque Pro can be found by clicking the link in the website icon under my user name on the left.

JejuSoul
Posts: 1238
Joined: Wed Jul 08, 2015 6:47 am
Location: Jeju
Contact: Website

Re: Comparing Hyundai / Kia Electric Vehicle Batteries

Wed Sep 19, 2018 8:29 am

-
In the repair manual for the I oniq HEV there is a screenshot of the official KDS screen showing two new values

Cell Balancing Status
Number of Balancing Cell

Could someone with this car have a look and let us know the PID codes for those, and how they function.

Image

I'm hoping the BMS for all the new Hyundai / Kia Electric Vehicles have these 2 values.
The codes for using Torque Pro can be found by clicking the link in the website icon under my user name on the left.

Return to “Technical Discussions”