Recall 196 now shows on US Hyundai Recall website..

And statistically you have a better chance of dying from just about anything else than dying from COVID, so statistically speaking not an issue. If you want to be extra careful, unplug after you reach 100%.

 

That seems sensible. And shouldn't be hard to do in my particular case. Since I don't have anywhere to charge other than my garage (very short drive way, so I'd block the sidewalk), I do prefer to minimize even the small chance of lighting my house on fire.

 

I was worried about this so I found the post. He's actually taking about 2 hours from 30% to 100%, because of two 10 minute pauses at 90% and 94% (Koreans on that forum seem to love fast charging their cars to 100%).

There is multiple posts confirming there is no pause at 80% but there is a pause at 90% and that the 95-100% charging speed decreased:

https://cafe.naver.com/allfm01?iframe_url_utf8=/ArticleRead.nhn%3Fclubid=21771803%26page=4%26inCafeSearch=true%26searchBy=0%26query=1kw%26includeAll=%26exclude=%26include=%26exact=%26searchdate=all%26media=0%26sortBy=date%26articleid=520779%26referrerAllArticles=true
https://cafe.naver.com/allfm01?iframe_url_utf8=/ArticleRead.nhn%3Fclubid=21771803%26page=4%26inCafeSearch=true%26searchBy=0%26query=1kw%26includeAll=%26exclude=%26include=%26exact=%26searchdate=all%26media=0%26sortBy=date%26articleid=520779%26referrerAllArticles=true

 

These mixed reports are precisely why I won't be taking mine in for any recall until after a few people in the U.S. have done the recall and post their results here.

 

I certainly can't speak for Hyundai, but it may be that with this latest BMS update they want to ferret out all the potentially bad battery cells. Then if/when all looks good, they can change it and allow faster charging again, all the way to 100%.

I am not too worried. I rarely charge above 80% anyway, and certainly not on a trip, as that last bit to 100% is always slower anyway, and not worth waiting around.

 

What will be really interesting is how many bad batteries are detected.

 

I doubt they will tell us.

 

They won't but owners (like yourself) might.

 

Then why are they giving this sw to cars with new batteries? Before the update they check for cell deviation and isolation resistance. If battery spec is all ready outside new parameters, they have to give you a “new battery” so that the car don’t brick it self. After the car gets new battery, they install the new sw. “New sw” as in the same as in this recall

 

Because part of the problem is the old software doesn't/can't catch the (suspected) underlying issue of charge imbalance.

The new BMS update seems to do two things:
1) Detect if a battery has any damaged cells
2) Manage the battery more carefully to prevent damage

Even new battery packs would benefit from both of these functions. The recall affects vehicles that left the factory before the new BMS software was in production.

 

Well Hyundai changed the recall bulletin, saying that the BMS is not to blame. Only faults during battery production.
So number 1 is not needed for a ok battery. And number 2 is not relevant since the BMS has nothing to do with this problem, according to Hyundai Motor Korea.

 

Yeah sorry but I'm not about to take the word of a company that has every motivation to bend the truth as far as they can get away with to minimize their liability over the reports of individuals and quotes from technicians, even if those reports and statements can not be independently verified.

Do you think Hyundai is going through the trouble and expense to push the BMS update for a lark or something?

There's also a fault in your logic: "So number 1 is not needed for a ok battery" - except you need number 1 to know if the battery is good or not, so yes it's needed even for "good" batteries because that's how you know it's good. And you need to keep testing, because the damage won't necessarily manifest all at once and you want to catch it as early as possible. If you're at high risk for a serious medical condition, you get tested regularly instead of waiting for the lump to be so large you're legally required to give it a name!

 

There is no fault in my logic. If sw was not to blame, then a new battery without the “production fault made by LG “ would not need this new sw. Why would it? The old sw had nothing faulty. Why fix something which is perfect...

However if what you are saying is that Hyundai is not telling the truth, then I understand your point. However Hyundai has removed any text saying the BMS had any faults. So according to them the only problem is some limited production faults made by LG

 

I don't think the fault is necessarily a fault of LG. LG provides the battery cell but the battery packs are actually manufactured by HL Green Power. HL Green Power assembles LG Chem's battery cells with Hyundai Mobis' battery management system. Its quite possible Green Power messed up.

 

Received notice today from Hyundai saying a safety recall has been issued on my Kona Ev's Voltage Battery System.I should park my vehicle outside
and/or away from structures until the recall repair is completed. Vehicle build is Feb.2019. I have charged it twice a week at 100% since I bought it
in May, 2019. No problems. (charge from reg wall socket in garage) SO the poor car is now outside (in the rain) I'm hesitant to make
the service appointment. If they do not sell many and do not service many Kona Evs do they know what they are doing?

 

Well, it's hard to guess where in the world you live but some of us are being told to not charge over 80%, park outside and unplug after charging. Certainly call and make an appointment however.

 

Got my recall email tonight from Hyundai and have my recall service scheduled for next Wednesday (11/11). Will post how it goes afterwards.