[Roadkill401]

you would need to be doing something purposefully wrong to be able to discharge the main traction battery enough that it couldn't boost the 12v suplimental battery enough to get going. I think that these cars are pretty self sufficiant in the way the electronics inside self manage to not really need the set of boostercables. Also, I don't know about the other countries but I know in Canada they come with FREE ROAD SIDE ASSISTANCE for is it 5 years. I didn't think the cars have been sold for long enough for anyone to need to bring a set of anything as the road side assistance should have your covered for just about anything that you could run into for at least 3 more years if you purchased a 2017 model.

 

[Roadkill401]

2018 PHEV here. I have had to jump start mine....I'm one of the 'miserable roadside assistance experience' people. Few comments on the process...

4. There are two spots to jump start it. Under the hood, there's a big electrical box with plastic cover. Pop it off and there's a positive battery post there among other things. Well, not exactly a post but a designated metal piece to clamp on to. The negative is to be latched onto whatever metal piece you like for ground. There is no negative post. This is the approved procedure in the manual.

I have a 2018 HEV and my vehicle has the exact same post inside the main engine electrical fuse box. I was also told by my Kia Dealer head mechanic that the HEV also has two separate batteries inside. As I have not taken the whole car apart and looked for where the batteries are located, I can't say if there are two separate distinct batteries inside the car or if it's just one. But I do not know of how you would take a single battery cluster and partition of a certain percentage or part of the battery. The confusion might come in they package the whole battery as a single wrapped unit, but there are two separate physical battery clusters inside.

I think they are not lead-acid batteries, but L-Ion, and in which case, the battery is made up of multiple small 1.5v cells that are joined together in clusters to make up the voltage and current required. Joining a small battery in series gives you a higher voltage, where joining them in parallel gives you a higher current.