12V battery source 2024 HEV

Drivehard

@Drivehard

Mar 19, 2024

First off, I am new to this forum, but a long time car guy and engineer

I hope to contribute as much as I can.

We have a 2024 Sportage Prestige HEV. I know there is no separate 12V battery as there is on the PHEV, but everything I read says there is a 12V battery integrated into the high voltage battery under the back seat. I also know there is a good 12V power point under the hood going from the Hybrid Power Control Unit (HPCU) to the fuse box.

Well, my wife and I agree the bass is underwhelming in this car, just like it was in my EV6, so I plan on adding a spare tire subwoofer in the back. The question being...is there an easy way to get access to the 12V portion of the high voltage battery so I don't have to run a power cable all the way from under the hood? I can't find anything that says where that separate portion of the battery might be.

My hunch is that there is no separate 12V portion of the battery pack, and all 12V power comes from the HPCU under the hood...and that is the only good source of 12V power....perhaps there is a 12V capacitor somewhere?

Legacy Mode

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daveshel

@daveshel

Apr 29, 2024

I don't thunk you can get to 12V from under he seat. They put in those ports in the engine compartment to keep you away from the big battery.

There is a 12V power port on my 2024 LX, sort inboard of the gas filler. Those circuits are able to supply pretty good current, and it would be easy to tap into it near the port. Of course it depends on just how much bass you want, but I think that circuit would be good for a decent amp for a single sub.

17 Replies

Apr 30, 2024

daveshel said:
I don't thunk you can get to 12V from under he seat. They put in those ports in the engine compartment to keep you away from the big battery.

There is a 12V power port on my 2024 LX, sort inboard of the gas filler. Those circuits are able to supply pretty good current, and it would be easy to tap into it near the port. Of course it depends on just how much bass you want, but I think that circuit would be good for a decent amp for a single sub.

There is a 50 amp circuit in the back for powering a trailer. As we will never pull a trailer, I used that to power the amp.

17 Replies

Bruce H

@Bruce H

May 7, 2024

G-196969 said:
There is a 50 amp circuit in the back for powering a trailer. As we will never pull a trailer, I used that to power the amp.

Where is that trailer power circuit? I plan to start a separate thread about trailer wire connections--the dealer tells me that my 2024 Sportage HEV (EX trim) doesn't have trailer wiring...

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Drivehard

@Drivehard

May 8, 2024

Bruce H said:
Where is that trailer power circuit? I plan to start a separate thread about trailer wire connections--the dealer tells me that my 2024 Sportage HEV (EX trim) doesn't have trailer wiring...

Under the driver side trim panel in the hatch area.
Check out my post here.

2024 Prestige HEV - added subwoofer to HK system

www.kia-forums.com

17 Replies

JLDUBU

@JLDUBU

Jul 28, 2024

OkieBart said:
Also....does anybody know if there is a vent for the battery under the back seat that can't be blocked by seat covers?

The manual for my new Sportage says there is a vent in that location that shouldn't be blocked. But I can't seem to locate the vent. I'm wondering the same thing (blanket on top when seats are folded down)

17 Replies

joevsyou

@joevsyou

Nov 28, 2024

G-536476 said:
I bought a Kia Sportage Hybrid in Mar, 2024.
The car only gets 34.8 mpg and never gets to 38-42!
What is wrong with the hybrid version.
I am waiting for an explanation of my mpg next week by a mechanic to see if they find something wrong!

I have a 23 and AC went out in the summer, well during the month with the ac off. i was easily getting 38. everywhere.

but normally i am more like 31-33. I live hilly city + i drive a lot of highway. One day a week on the way home. the highway is pretty flat with a few down hills. with traffic i can only drive between 30-55 mph. and it does exceed 42mph but thats not normal.

17 Replies