That’s why my local KIA tech connects a battery charger directly to the 12v when any lengthy work is performed on these cars (software update,etc). This procedure is often listed in the notes section of the invoice.
Forgot to thank you Brian for all your Videos helping the rest of us much appreciated. A colleague who also has the EV6 sent me this ,to lighten things up. "Went to start my car today,it didn't start, so i opened the bonnet and saw a bat sitting there, It said your a good looking chap and very well dressed, now i know what the problem is Bat Flattery "
Good info Brian. I leave my tailgate open for long periods when working outside and I noticed that, after a while, it turns off the boot light to save power drain. When I have to buy my own batteries I always get Motorhoome versions which are semi-leisure and don't die if they get a deep discharge. It's not as if an EV needs a high cranking voltage, so a full leisure battery would probably be OK.
Thanks Brian - very interesting as always. Regards disconnecting Kia Connect when the car's in the dealership, I used the Kia Connect "The boot is open" message to call the garage and tell them to close the boot, or the battery will go flat. The message came back from Kia Connect that everything was OK. My solution therefore is to tell the garage on arrival to disconnect the 12v if things are to be left open - and point out that I'm checking on them while it's being worked on. It seems to focus minds - so far! 19th July for next software update visit
Confirms my worries. The KIA Connect App was what killed our original battery. Since it was replaced I have managed without the App. I would suggest putting it in offline mode, and deleting the app!
That seems like an extreme solution … I like having the app. Got a new battery in the Soul, before Christmas. Everything’s been OK since - though I do keep an eye on the Battery Monitor occasionally. My impression is that the 12V battery drained at a higher level when the car was plugged in and waiting for a scheduled charge. It’s seems to be really back to the BMS - charging on interval rather than on voltage/SOC. And yes, I appreciate the EV6 is going to be a bit different to the Soul/Niro - though there appears to be quite a bit of commonality in the logic being used for both systems.
One factor that can be overlooked is that the car's internal 'recovery' mode that energises the DC to DC converter to top-up the 12v battery is disabled if the traction battery SOC is at 20% or below. So that parking up with a low state of charge in the traction battery and then leaving doors etc open as well as the usual drains for telemetry can result in the 12v battery being drained without being topped up as expected.
Yes i’ve covered that before in other videos and it also crops up earlier in the comments on this video but my car has never been below 25%SOC on the traction battery. Always well worth reminding people who are unaware of it though cheers.
Thanks for info, very insightful as always. Mine is going in soon for the battery conditioning TSB and after watching this video I will put Kia Connect in Offline mode before it goes in. 18 months old, no 12v issues..... yet 😬
@RuiSjm my car is 22 months old. It's still on the original 12v battery. I rarely use the Kia Connect app, other than in winter for remote heating, otherwise I don't have any use for it. I schedule my charging via my home charger app and I do reasonable mileage (37,000km complete). I don't have reason to be opening the car or the boot when I'm not going anywhere, I know that this impacts 12v life also. What I am more concerned about however is reading recently that the ICCU software update (which I don't have yet anyway) only improved diagnostics in order to alert the car/driver sooner and does not prevent the fault happening so I'm awaiting the inevitable when my ICCU packs up. Something not to look forward to 🙄 Thankfully I've had zero reliability problems in the 22 months of ownership though so I've no complaints.
Thank you Brian for the research into the 12volt battery issue. Interesting as my brother purchased a new Toyota 'Hybrid' Yaris in December 2020, when we went into another "Wuhan/Covid" lockdown virus phase. His car was left on his driveway for a couple of weeks without being driven. Yes, you guessed it. He had the same issues. His car would not function as the 12volt battery was being run down with all the ancillaries (computer, alarm, keyless entry etc) draining power? In my view this is because the incorrect 12v amp hour battery is being used, and would not be picked up during a short testing phase of the car (KIA Testing Technicians). A better solution would be to have the same sized battery, with more capacity "Amp hours" which could keep the quiescent volts/milliamps feeding the ancillaries for a longer duration. i.e. so you can leave a car for 4 weeks at an airport, without needing a "Portable Car Jump Start" device for hybrids and electric cars. Test 1: For the EV6 (assuming all the electronics are working correctly) we need to know the to power being used from the 12volt battery - whilst parked up with just the standard items being powered up. Test 2: Try and record the extra power requirements as used for the tailgate, and anything else that draws power, when the vehicle is stationary. Note: The EV6 'Air' 12V battery is 60Ah (20HR) : Your battery now is 62Ah - as you say not much difference! [This is assuming there is not a bad batch of batteries being used.]
Reminds me of when I got a crack in my fossil car's windscreen and they offered to repair it on my driveway. Oh, what a great service! I thought. The guy drained my battery in the process, I was worried he'd destroyed it, fortunately not.
Mine died a few times in a single month. KIA's told me that it was caused by my Pod point home charger. Apparently, it was constantly "informing" my Pod point app how much charge it drew. And since it's constantly on, it was draining the 12 volt. 😅
the main reason why you notice the battery voltage start to rise again is the car systems went to sleep ( all cars do this not just EV's) eg the usb port turned off in doing so the current draw from the battery was reduce and in turn the voltage increased and when you closed the boot it had to power up systems then the voltage increased again afterwards . on my Niro the 12v will always be charged when the 12v is at 12.5v but only when the car is locked but why won't the 12v be charge when the car is unlocked, doors open etc may be its a safety issue having to have the HV powered up to maintain the 12v. i wouldn't be surprised once you locked the car after that test the 12v was charged up. i have also changed all my internal lights to LED's this has reduced the wattage a lot. this week the car hasn't been used so the 12v charged as follows day 1 no charge, day 2 charged @1am for 50mins, day 3 charged twice 3am for 30mins, 6am for 15mins, day 4 1pm 1 hour. no other activities seen on the 12v.
This is definitely manufacturer’s faulty design. KIA has to recall EV6s and fix the draining issue with 12V batteries. So far they are shrinking from accepting responsibility. Let’s wait for another 1-2 years until the majority bulk of EV6 owners would hit the problem and it would hopefully send KIA into a meltdown.
Mine went into my local dealership - Wessex Kia in Newport - a few weeks ago, to have everything recalibrated after the windscreen was replaced. I noticed they put it into offline mode (I got a push notification on the app). So it seems maybe some technicians will do that as a matter of course, or it's in the SOP for their service department.
A fully charged 12v battery is at approx 12.65v. 12.3v in the video is just over 50%DoD and about as low as one really wants a SLA to go. The BM display showing 90% is very misleading. The battery will only be charged if the voltage from the DC-DC converter is above 12.65v. At around 12.5v it is only slowing down the rate of discharge. The charge voltage should be above a 13.6v float voltage. I would also connect an ammeter between the battery negative terminal post and the negative lead. Shut down, leave and lock car and monitor the ammeter as well as BM. It would be interesting to read what the quiescent state current is??
Your drain is no different to a standard ICE car when its being worked on, true to say that ICE cars do have higher capacity battery's. SOC and Volts are two different measures there will be a surface charge on a battery following any charge period this dissipates rapidly after charger is disconnected then the battery will stabilize at its true SOC or Voltage, that's why they are tested after a full charge and a 1 hour wait. the issue with your car was that the battery sulphated this is due to the battery being constantly held at a nominated voltage and not stressed, ICE battery's are subjected to almost a dead short when the car is asked to start EV's are not and as such the plates are not forced to shed the sulphation, this then builds to a point where the battery's ability to transfer between pos and neg plates is reduced causing battery failure.
Whilst that may be true,the telematics is not helping the situation. Also the car constantly maintaining the 12v at >98% SOC with >14 volts constantly whilst driving may also not be helping (this is Jon Godfrey’s theory)
2023 EV6 GT - Two weeks ago I took the vehicle into KIA and they replaced the 12V battery & did two software updates because It dies after leaving the car over night. I was using my tiny jump pack to override the 12V system to start the car for about 2 weeks :( Two weeks later and now the car has the same issues. I'm sitting at KIA and waiting to see what they find. Will update this post when I find out.
Sorry to hear that. Sometimes it’s been known that wiring problems cause a parasitic drain. Even the Meridian Amp has been known to cause it by not shutting down.
@Dub_lub not in UK but if you took out a loan you may have more protection and may be able to reject it so I've been told by others in comments on here
Lord. Just bought a 2024 in the US. I freaking love it, but the ICCU issues and the 12volt battery issues have me a bit spooked. But it's under warranty, I guess. It is like any other car. They all have issues
They certainly do, Electric or not . 7 year warranty in the UK counts for a lot. Most never have any problems.I've had more than my most but I still love my car.
The electronics hardware must be horribly power inefficient if it can't handle sending out a status update a few times a day. Unfortunately this probably isn't something that can't be fixed ota
Talking about the boot open. I wish we could turn off the light in the boot and it wouldn’t be an issue. I even looked at the fuse diagrams and didn’t see it listed so no idea what fuse to pull to knock the light off when leaving the boot open
@@evodessey yeah you’re right but I have a tent to car camp and it attaches on the boot. So it stays open all day and night plus it’s annoying for it be on in general when sleeping. Just wish utility mode would give control over all lights and dashboard to turn completely off. I have to put a towel over the dashboard on the steering wheel due to that always on. I find it odd how you can turn off the info part but nothing else lol
At the start of the video your SOC was 94%. At the end, it was 87%. being very conservative that means whilst doing your testing you lost 5% of your battery. That means that you used approx 3.5Kw per hr. I know that you truncated the video in places, but if you continued to do stuff for 20 times as long as you actually did, you would have entirely flattened the main traction battery without moving an inch. That to me seems an incredibly heavy power draw to to action some ancillary functions, especially when I consider that in an emergency situation I've estimated I could power all key aspects of my house for around a week from the EV6.
I don’t think the BM2 monitor is actually that accurate.It’s just a best guess based on the 12v voltage mapped to a guestimate of the remaining 12v %SOC. So i don’t think it would use that much. As others have pointed out in the comments the 12v recovers to it’s actual real %SOC after the load has been removed so it wasn’t the VCMS doing it in this case.(this would show as 14v charging voltage)
Hi, i notice that the EV6 has the exact same issue as the ioniq 5 with battery drain, looks like maybe the new battery linked to a software update may have fixed the issue if this doesn't happen again as it is a worldwide issue.
so watching your video I can tell the US version is waaay different than the European (at least mine) in the way that once you powered the car off, open the door and close it, everything powers off. For example I can open the windows, turn the car off and then I can still close the windows. If I open the door while the windows are down and close it, the windows will not go up, also all the displays will be off as well after 5 minutes. I get the kia connect notification but everything is powered down, the display is off, it happened to me once when I left the sunroof open
Cheers. Very interesting. I’ve more testing to do. Some stuff does go off when i exit vehicle but the head unit & USB ports remain on for an amount of time that i also need to measure. The test i did was sitting in the car without locking so it may well be a shorter delay.The USB port also comes on sometimes whilst AC charging but not always.More strangeness.
It's weird. The Kia Connect app doesn't do half this stuff in the US... Ours is called Kia Access and all it does is let us lock doors, start charging and climate, and turn on valet mode and find the car. No diagnostics
I have had major issues with the 12v battery also. Dealership not been very helpful. Also found not possible to use Intelligent Octopus because 12v drained before charging starts. I see Li ion batteries are available and was wondering about fitting one but I feel this should be Kia's responsibility to fix. Thanks for your video I will be disabling Kia connect when not actually using the car. Interestingly mine was an early model EV6. Are these early cars more prone to the 12v issue?
Mine was also an early EV6. I think the age of the 12v battery 18 months in my case was not helping the problem. I’m not sure if sticking a Li on battery would invalidate the warranty. They should change your 12v under warranty once they’ve done tests on it.
if the main battery is low then it won't trickle charge the 12v i believe that's what happened to me recently including the car was left unlocked overnight
Hi I was told that if the main traction battery is below a certain state of charge it would not charge the 12 volt battery. How true this is I don’t know. But just in case there is an element of truth in it I would not leave the main battery at a low state of charge.
Hi Brian, Just wanted to ask if you’ve had any further problems with the 12V battery ever since replacing? Having similar issues, got the car back in Oct 23 so has only been 4-5 months but 12V battery constantly dying and having to jump start it (even on the morning after the car was delivered, the first time I turned it on the battery was dead). Got a replacement battery ordered in today which will take at least 3 weeks they told me but have low confidence that once replaced the new battery will put the issue away based on what I’ve read from other people’s experiences.
One point. You did not turn the car off & walk away. You were still sat in the car with the doors unlocked. You turned car off @3:56 but infotainment screen was still on. @ 4:35 screen still on, but is then is hidden by the battery monitor. So how much longer was screen running? If you shut down & lock car 5 mins is the max usb will stay live. As you are sat in car, you are keeping it alive. So your test is slightly flawed.
Maybe maybe not. The infotainment screen did shut down with it’s Kia logo within 3-4 minutes. There are plenty of reports of the MA1 being woken up by Kia Connect and staying on for 10 minutes before i did this test. I chose to simplify the test. I will do the test of the MA1 again with the car locked and key removed and also all of the other instances for completeness at some stage.
@@evodessey Hello. Did you do the testing with the MA1? I am considering buying an MA1 but I've recently had a dead 12v battery when I left the EV6 for 2 weeks whilst on holiday (I didn't put the Kia Connect into offline mode). I don't want anything else to contribute to draining the 12v battery.
@@timcole2079 I just unplug the MA1 when not in use just in case. In theory the USB times out after 10-15 minutes but Kia Connect,V2L or charging turns USB back on and wakes it back up. All of those situations cause the car to charge the 12v battery so they should be ok but it creates an annoyance on your phone when the MA1 wakes up and connects.
I have had this problem twice sofar,and been told a third party app is draining the battery as it wake-up the car up to 50 times a day?? Not sure yet what is the cause,but searching for answers
I just my car two weeks ago 2024 GT line RWD Snow White pearl love it Wanted to know if I keep the key on my person why when I turn the car off the driver screen stay white lit with a “P” for like a long time doesn’t that drain the 12v Also I like to take my lunch in my car sometimes will sitting in my car with key in pocket but car is off will doing that drain the 12v too?
Hi, congratulations on your new EV6. It will use 12v a little yes but it usually shuts off in a few minutes unless a door is left ajar. Should be OK sitting in car with car key as far as i know.
I plugged in my odb2 that I just got. Jump started car. The app shows 12 volt to be 255% . I wonder if the iccu is seeing battery fully charged so doesn't keep it charged overnight.
I’ve seen that before it’s a glitch. I think as you say 255 is the 8 bit version of fully charged. Once the car has been off for a while it normalises.
Hi I had to have some work done on my EV6 so did as you suggested go onto off line mode on Kia connect but having switched it back on I now don’t receive any notifications i.e doors not locked changing complete etc. any suggestions would be great thanks.
@@evodessey hi I can still lock and unlock the car with my phone and see the charging status but it’s just not notifying me when doors open or charging complete etc. the app is showing that it is connected to the car.
@@stephenclay6852 check in the Kia Connect app under More->App settings->push notifications to see if they are all turned on. Still a bit strange though all the same.
My 12V battery has never been under 79% with the rear open for a few hours. Somebody tested charging - and they say headlights full on gives the fastest 12V charging. So make sure to complete all trips with headlights on (not just auto) for the last 5 minutes. I use multiple apps. Home Assistant, something connected to the charger, and the Kia connect. HA will only ask server - except every 4 hours where it will force server to query car. Pauses overnight. Other app only checks battery status when I connect to the charger. The problem here is 2 things: 1. Kia has a long history with bad 12V batteries 2. Charging of 12V battery has problems. Hardware or software. And why not start charging when battery is seen low ? Car knows 12V voltage.
Thanks for posting and documenting this issue. What I'm taking away so far is that there are many potential drains on the 12v battery, including through the USB port and the KIA connect app - - BUT perhaps these are only relevant with a battery that is already compromised? So far, it looks like your new 12v battery is handling the normal 12v drains very well? And you noted that the dealership replaced your old battery with a beefier, larger capacity, battery? Would you share the specs on that new battery (vs the specs of the old battery)? It would be nice if that were the case and the fix is to simply replace the 12v battery if needed. Since I don't know the status (health) of my 12 v battery, I'm watching 12v drains very carefully. (USA, 2022 AWD Wind model, early production.) To deal with the potential drain of the wireless Motorola MA1 Android Auto adapter, I bought this USB on-off switch on Amazon. www.amazon.com/gp/product/B08M44D79T/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
I would say the battery is more able to handle it yes but the major risk is when it goes into the workshop for service & recalls and leave doors,bonnet & tailgate open for hours. That in turn drains 12v by keeping binnacle display on and also send out tons of Kia Connect messages about car being unlocked,doors being open and such so i will be taking Kia Connect offline at next service. This is the old battery drive.google.com/file/d/1_wYwSWjItQ6Qf4c9zGdWDtE40wTBw7Z1/view?usp=drivesdk This is the new battery drive.google.com/file/d/1h9eJOObkxigr9JUd87Ay8JoOzdCrGwpd/view?usp=drivesdk
@@evodessey Thanks for your reply. My car is going into service today for the battery conditioning software and amplifier replacement today. I will turn off the Kia Connect messages and alert the service staff to be mindful of 12v battery drain. And thanks for posting the battery comparison. In addition to simply having a new battery, looks like you went from 60 Ah to 62 Ah. Since I know next to nothing about 12v batteries, I don't know how significant an increase this is. Good luck and THANK YOU for your videos!
The service department says they always connect the 12v battery to a battery tender when updating software. So that's good. Also, apparently, the KIA connect software is different in the US variant. I could not find a way to put KIA connect in offline mode. The menus are different.
That’s why my local KIA tech connects a battery charger directly to the 12v when any lengthy work is performed on these cars (software update,etc). This procedure is often listed in the notes section of the invoice.
Very sensible move. You get notes. I get sod all paper work these days. It’s like trying to extract teeth😂
Forgot to thank you Brian for all your Videos helping the rest of us much appreciated.
A colleague who also has the EV6 sent me this ,to lighten things up.
"Went to start my car today,it didn't start, so i opened the bonnet and saw a bat sitting there,
It said your a good looking chap and very well dressed, now i know what the problem is
Bat Flattery "
No worries,glad you find them useful
Good to hear your 12 Volt battery has been replaced.
Good thing in a way that we don't have Kia Connect in Australia.
Hey Ron, yes, I guess if we don't have it, we don't miss it LOL !
Good info Brian. I leave my tailgate open for long periods when working outside and I noticed that, after a while, it turns off the boot light to save power drain. When I have to buy my own batteries I always get Motorhoome versions which are semi-leisure and don't die if they get a deep discharge. It's not as if an EV needs a high cranking voltage, so a full leisure battery would probably be OK.
Thanks Brian - very interesting as always. Regards disconnecting Kia Connect when the car's in the dealership, I used the Kia Connect "The boot is open" message to call the garage and tell them to close the boot, or the battery will go flat. The message came back from Kia Connect that everything was OK. My solution therefore is to tell the garage on arrival to disconnect the 12v if things are to be left open - and point out that I'm checking on them while it's being worked on. It seems to focus minds - so far! 19th July for next software update visit
That’s one way😂
Confirms my worries. The KIA Connect App was what killed our original battery. Since it was replaced I have managed without the App. I would suggest putting it in offline mode, and deleting the app!
That seems like an extreme solution … I like having the app. Got a new battery in the Soul, before Christmas. Everything’s been OK since - though I do keep an eye on the Battery Monitor occasionally. My impression is that the 12V battery drained at a higher level when the car was plugged in and waiting for a scheduled charge. It’s seems to be really back to the BMS - charging on interval rather than on voltage/SOC.
And yes, I appreciate the EV6 is going to be a bit different to the Soul/Niro - though there appears to be quite a bit of commonality in the logic being used for both systems.
One factor that can be overlooked is that the car's internal 'recovery' mode that energises the DC to DC converter to top-up the 12v battery is disabled if the traction battery SOC is at 20% or below. So that parking up with a low state of charge in the traction battery and then leaving doors etc open as well as the usual drains for telemetry can result in the 12v battery being drained without being topped up as expected.
Yes i’ve covered that before in other videos and it also crops up earlier in the comments on this video but my car has never been below 25%SOC on the traction battery. Always well worth reminding people who are unaware of it though cheers.
Thanks for info, very insightful as always. Mine is going in soon for the battery conditioning TSB and after watching this video I will put Kia Connect in Offline mode before it goes in. 18 months old, no 12v issues..... yet 😬
Yeah mine was also 18 months old….Good luck
Mine I replace now, passed 37 months🤣🤣
@RuiSjm my car is 22 months old. It's still on the original 12v battery. I rarely use the Kia Connect app, other than in winter for remote heating, otherwise I don't have any use for it. I schedule my charging via my home charger app and I do reasonable mileage (37,000km complete). I don't have reason to be opening the car or the boot when I'm not going anywhere, I know that this impacts 12v life also.
What I am more concerned about however is reading recently that the ICCU software update (which I don't have yet anyway) only improved diagnostics in order to alert the car/driver sooner and does not prevent the fault happening so I'm awaiting the inevitable when my ICCU packs up. Something not to look forward to 🙄
Thankfully I've had zero reliability problems in the 22 months of ownership though so I've no complaints.
Thank you Brian for the research into the 12volt battery issue. Interesting as my brother purchased a new Toyota 'Hybrid' Yaris in December 2020, when we went into another "Wuhan/Covid" lockdown virus phase. His car was left on his driveway for a couple of weeks without being driven. Yes, you guessed it. He had the same issues. His car would not function as the 12volt battery was being run down with all the ancillaries (computer, alarm, keyless entry etc) draining power?
In my view this is because the incorrect 12v amp hour battery is being used, and would not be picked up during a short testing phase of the car (KIA Testing Technicians).
A better solution would be to have the same sized battery, with more capacity "Amp hours" which could keep the quiescent volts/milliamps feeding the ancillaries for a longer duration. i.e. so you can leave a car for 4 weeks at an airport, without needing a "Portable Car Jump Start" device for hybrids and electric cars.
Test 1: For the EV6 (assuming all the electronics are working correctly) we need to know the to power being used from the 12volt battery - whilst parked up with just the standard items being powered up.
Test 2: Try and record the extra power requirements as used for the tailgate, and anything else that draws power, when the vehicle is stationary.
Note: The EV6 'Air' 12V battery is 60Ah (20HR) : Your battery now is 62Ah - as you say not much difference!
[This is assuming there is not a bad batch of batteries being used.]
Reminds me of when I got a crack in my fossil car's windscreen and they offered to repair it on my driveway. Oh, what a great service! I thought. The guy drained my battery in the process, I was worried he'd destroyed it, fortunately not.
Mine died a few times in a single month. KIA's told me that it was caused by my Pod point home charger. Apparently, it was constantly "informing" my Pod point app how much charge it drew. And since it's constantly on, it was draining the 12 volt. 😅
How did you resolve that, I have Pod Point and big 12v issues
the main reason why you notice the battery voltage start to rise again is the car systems went to sleep ( all cars do this not just EV's) eg the usb port turned off in doing so the current draw from the battery was reduce and in turn the voltage increased and when you closed the boot it had to power up systems then the voltage increased again afterwards . on my Niro the 12v will always be charged when the 12v is at 12.5v but only when the car is locked but why won't the 12v be charge when the car is unlocked, doors open etc may be its a safety issue having to have the HV powered up to maintain the 12v. i wouldn't be surprised once you locked the car after that test the 12v was charged up. i have also changed all my internal lights to LED's this has reduced the wattage a lot. this week the car hasn't been used so the 12v charged as follows day 1 no charge, day 2 charged @1am for 50mins, day 3 charged twice 3am for 30mins, 6am for 15mins, day 4 1pm 1 hour. no other activities seen on the 12v.
This is definitely manufacturer’s faulty design. KIA has to recall EV6s and fix the draining issue with 12V batteries. So far they are shrinking from accepting responsibility. Let’s wait for another 1-2 years until the majority bulk of EV6 owners would hit the problem and it would hopefully send KIA into a meltdown.
Mine went into my local dealership - Wessex Kia in Newport - a few weeks ago, to have everything recalibrated after the windscreen was replaced. I noticed they put it into offline mode (I got a push notification on the app). So it seems maybe some technicians will do that as a matter of course, or it's in the SOP for their service department.
Other forums are talking about if you never look your car it will eventually drain the 12v battery. It is weird, old tech messing up new tech.
A fully charged 12v battery is at approx 12.65v. 12.3v in the video is just over 50%DoD and about as low as one really wants a SLA to go. The BM display showing 90% is very misleading. The battery will only be charged if the voltage from the DC-DC converter is above 12.65v. At around 12.5v it is only slowing down the rate of discharge. The charge voltage should be above a 13.6v float voltage.
I would also connect an ammeter between the battery negative terminal post and the negative lead. Shut down, leave and lock car and monitor the ammeter as well as BM. It would be interesting to read what the quiescent state current is??
Your drain is no different to a standard ICE car when its being worked on, true to say that ICE cars do have higher capacity battery's. SOC and Volts are two different measures there will be a surface charge on a battery following any charge period this dissipates rapidly after charger is disconnected then the battery will stabilize at its true SOC or Voltage, that's why they are tested after a full charge and a 1 hour wait. the issue with your car was that the battery sulphated this is due to the battery being constantly held at a nominated voltage and not stressed, ICE battery's are subjected to almost a dead short when the car is asked to start EV's are not and as such the plates are not forced to shed the sulphation, this then builds to a point where the battery's ability to transfer between pos and neg plates is reduced causing battery failure.
Whilst that may be true,the telematics is not helping the situation. Also the car constantly maintaining the 12v at >98% SOC with >14 volts constantly whilst driving may also not be helping (this is Jon Godfrey’s theory)
2023 EV6 GT - Two weeks ago I took the vehicle into KIA and they replaced the 12V battery & did two software updates because It dies after leaving the car over night. I was using my tiny jump pack to override the 12V system to start the car for about 2 weeks :( Two weeks later and now the car has the same issues. I'm sitting at KIA and waiting to see what they find. Will update this post when I find out.
Sorry to hear that. Sometimes it’s been known that wiring problems cause a parasitic drain. Even the Meridian Amp has been known to cause it by not shutting down.
They just brought the car out and told me its ready. Went to go home and it was dead! Is there some type of lemon law for the BS? @@evodessey
@Dub_lub not in UK but if you took out a loan you may have more protection and may be able to reject it so I've been told by others in comments on here
Lord. Just bought a 2024 in the US. I freaking love it, but the ICCU issues and the 12volt battery issues have me a bit spooked. But it's under warranty, I guess. It is like any other car. They all have issues
They certainly do, Electric or not . 7 year warranty in the UK counts for a lot. Most never have any problems.I've had more than my most but I still love my car.
The electronics hardware must be horribly power inefficient if it can't handle sending out a status update a few times a day. Unfortunately this probably isn't something that can't be fixed ota
Talking about the boot open. I wish we could turn off the light in the boot and it wouldn’t be an issue. I even looked at the fuse diagrams and didn’t see it listed so no idea what fuse to pull to knock the light off when leaving the boot open
As far as i know it’s an LED just like the frunk light so will not use a lot.
@@evodessey yeah you’re right but I have a tent to car camp and it attaches on the boot. So it stays open all day and night plus it’s annoying for it be on in general when sleeping. Just wish utility mode would give control over all lights and dashboard to turn completely off. I have to put a towel over the dashboard on the steering wheel due to that always on. I find it odd how you can turn off the info part but nothing else lol
@@PhotoJohn80 Best you can do on binnacle instrument display is turn the brightness down to minimum.
Had mine replaced a few weeks ago.
At the start of the video your SOC was 94%. At the end, it was 87%. being very conservative that means whilst doing your testing you lost 5% of your battery. That means that you used approx 3.5Kw per hr. I know that you truncated the video in places, but if you continued to do stuff for 20 times as long as you actually did, you would have entirely flattened the main traction battery without moving an inch. That to me seems an incredibly heavy power draw to to action some ancillary functions, especially when I consider that in an emergency situation I've estimated I could power all key aspects of my house for around a week from the EV6.
I don’t think the BM2 monitor is actually that accurate.It’s just a best guess based on the 12v voltage mapped to a guestimate of the remaining 12v %SOC. So i don’t think it would use that much. As others have pointed out in the comments the 12v recovers to it’s actual real %SOC after the load has been removed so it wasn’t the VCMS doing it in this case.(this would show as 14v charging voltage)
@@evodessey Ah, I mistakenly thought the % display was the traction battery SOC, not the 12V battery
Hi, i notice that the EV6 has the exact same issue as the ioniq 5 with battery drain, looks like maybe the new battery linked to a software update may have fixed the issue if this doesn't happen again as it is a worldwide issue.
Hi,which software update did you have done to fix it?
so watching your video I can tell the US version is waaay different than the European (at least mine) in the way that once you powered the car off, open the door and close it, everything powers off. For example I can open the windows, turn the car off and then I can still close the windows. If I open the door while the windows are down and close it, the windows will not go up, also all the displays will be off as well after 5 minutes. I get the kia connect notification but everything is powered down, the display is off, it happened to me once when I left the sunroof open
Cheers. Very interesting. I’ve more testing to do. Some stuff does go off when i exit vehicle but the head unit & USB ports remain on for an amount of time that i also need to measure. The test i did was sitting in the car without locking so it may well be a shorter delay.The USB port also comes on sometimes whilst AC charging but not always.More strangeness.
@@evodessey when charging the car powers on because the telemetry, telling you the SoC i guess
It's weird. The Kia Connect app doesn't do half this stuff in the US... Ours is called Kia Access and all it does is let us lock doors, start charging and climate, and turn on valet mode and find the car. No diagnostics
Ours does not let you take images from the car cameras
I have had major issues with the 12v battery also. Dealership not been very helpful. Also found not possible to use Intelligent Octopus because 12v drained before charging starts. I see Li ion batteries are available and was wondering about fitting one but I feel this should be Kia's responsibility to fix. Thanks for your video I will be disabling Kia connect when not actually using the car. Interestingly mine was an early model EV6. Are these early cars more prone to the 12v issue?
Mine was also an early EV6. I think the age of the 12v battery 18 months in my case was not helping the problem. I’m not sure if sticking a Li on battery would invalidate the warranty. They should change your 12v under warranty once they’ve done tests on it.
I don't think that when the battery voltage started creeping up it was due to battery management else it would jump to 14+V?
Maybe the clicking of the ICCU which is under the back seat was a coincidence then but yes 14v+ is normal charging voltage.
if the main battery is low then it won't trickle charge the 12v i believe that's what happened to me recently including the car was left unlocked overnight
Yes that’s true. If traction battery %SOC is less than 20% it will not top up. It will still charge 12v whilst driving though.
Hi I was told that if the main traction battery is below a certain state of charge it would not charge the 12 volt battery. How true this is I don’t know. But just in case there is an element of truth in it I would not leave the main battery at a low state of charge.
Its not good practice to leave the HV battery at a low state of charge at any time!
It is true that if the traction battery is
@@Jock55 I’ve never been below 25%
@@Jock55 absolutely agree with you. I don’t let my battery go below 20% normally.
Hi Brian,
Just wanted to ask if you’ve had any further problems with the 12V battery ever since replacing?
Having similar issues, got the car back in Oct 23 so has only been 4-5 months but 12V battery constantly dying and having to jump start it (even on the morning after the car was delivered, the first time I turned it on the battery was dead).
Got a replacement battery ordered in today which will take at least 3 weeks they told me but have low confidence that once replaced the new battery will put the issue away based on what I’ve read from other people’s experiences.
No,it's been fine touchwood😳🤞
One point. You did not turn the car off & walk away. You were still sat in the car with the doors unlocked. You turned car off @3:56 but infotainment screen was still on. @ 4:35 screen still on, but is then is hidden by the battery monitor. So how much longer was screen running? If you shut down & lock car 5 mins is the max usb will stay live. As you are sat in car, you are keeping it alive. So your test is slightly flawed.
Maybe maybe not. The infotainment screen did shut down with it’s Kia logo within 3-4 minutes. There are plenty of reports of the MA1 being woken up by Kia Connect and staying on for 10 minutes before i did this test. I chose to simplify the test. I will do the test of the MA1 again with the car locked and key removed and also all of the other instances for completeness at some stage.
@@evodessey Hello. Did you do the testing with the MA1? I am considering buying an MA1 but I've recently had a dead 12v battery when I left the EV6 for 2 weeks whilst on holiday (I didn't put the Kia Connect into offline mode). I don't want anything else to contribute to draining the 12v battery.
@@timcole2079 I just unplug the MA1 when not in use just in case. In theory the USB times out after 10-15 minutes but Kia Connect,V2L or charging turns USB back on and wakes it back up. All of those situations cause the car to charge the 12v battery so they should be ok but it creates an annoyance on your phone when the MA1 wakes up and connects.
I have had this problem twice sofar,and been told a third party app is draining the battery as it wake-up the car up to 50 times a day??
Not sure yet what is the cause,but searching for answers
Mostly it is 3rd party energy apps but sometimes can be a phantom drain in seat wiring
I just my car two weeks ago 2024 GT line RWD Snow White pearl love it
Wanted to know if I keep the key on my person why when I turn the car off the driver screen stay white lit with a “P” for like a long time doesn’t that drain the 12v
Also I like to take my lunch in my car sometimes will sitting in my car with key in pocket but car is off will doing that drain the 12v too?
Hi, congratulations on your new EV6. It will use 12v a little yes but it usually shuts off in a few minutes unless a door is left ajar. Should be OK sitting in car with car key as far as i know.
I plugged in my odb2 that I just got. Jump started car. The app shows 12 volt to be 255% .
I wonder if the iccu is seeing battery fully charged so doesn't keep it charged overnight.
I’ve seen that before it’s a glitch. I think as you say 255 is the 8 bit version of fully charged. Once the car has been off for a while it normalises.
Hey man, what's the device you use please? I assume it is an OBDII plug in device?
It's a BM-2 battery monitor, connected directly to the + and - of the 12V battery.
Hi I had to have some work done on my EV6 so did as you suggested go onto off line mode on Kia connect but having switched it back on I now don’t receive any notifications i.e doors not locked changing complete etc. any suggestions would be great thanks.
Check the app has the car selected. You did just switch to offline didn't you? If you chose deactivate then you have to work through activation again
@@evodessey hi I can still lock and unlock the car with my phone and see the charging status but it’s just not notifying me when doors open or charging complete etc. the app is showing that it is connected to the car.
@@stephenclay6852 check in the Kia Connect app under More->App settings->push notifications to see if they are all turned on. Still a bit strange though all the same.
@@evodessey will do thanks
My 12V battery has never been under 79% with the rear open for a few hours.
Somebody tested charging - and they say headlights full on gives the fastest 12V charging. So make sure to complete all trips with headlights on (not just auto) for the last 5 minutes.
I use multiple apps. Home Assistant, something connected to the charger, and the Kia connect.
HA will only ask server - except every 4 hours where it will force server to query car. Pauses overnight.
Other app only checks battery status when I connect to the charger.
The problem here is 2 things:
1. Kia has a long history with bad 12V batteries
2. Charging of 12V battery has problems. Hardware or software. And why not start charging when battery is seen low ? Car knows 12V voltage.
Thanks for posting and documenting this issue. What I'm taking away so far is that there are many potential drains on the 12v battery, including through the USB port and the KIA connect app - - BUT perhaps these are only relevant with a battery that is already compromised? So far, it looks like your new 12v battery is handling the normal 12v drains very well? And you noted that the dealership replaced your old battery with a beefier, larger capacity, battery? Would you share the specs on that new battery (vs the specs of the old battery)? It would be nice if that were the case and the fix is to simply replace the 12v battery if needed. Since I don't know the status (health) of my 12 v battery, I'm watching 12v drains very carefully. (USA, 2022 AWD Wind model, early production.) To deal with the potential drain of the wireless Motorola MA1 Android Auto adapter, I bought this USB on-off switch on Amazon. www.amazon.com/gp/product/B08M44D79T/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
I would say the battery is more able to handle it yes but the major risk is when it goes into the workshop for service & recalls and leave doors,bonnet & tailgate open for hours. That in turn drains 12v by keeping binnacle display on and also send out tons of Kia Connect messages about car being unlocked,doors being open and such so i will be taking Kia Connect offline at next service. This is the old battery drive.google.com/file/d/1_wYwSWjItQ6Qf4c9zGdWDtE40wTBw7Z1/view?usp=drivesdk This is the new battery drive.google.com/file/d/1h9eJOObkxigr9JUd87Ay8JoOzdCrGwpd/view?usp=drivesdk
@@evodessey Thanks for your reply. My car is going into service today for the battery conditioning software and amplifier replacement today. I will turn off the Kia Connect messages and alert the service staff to be mindful of 12v battery drain. And thanks for posting the battery comparison. In addition to simply having a new battery, looks like you went from 60 Ah to 62 Ah. Since I know next to nothing about 12v batteries, I don't know how significant an increase this is. Good luck and THANK YOU for your videos!
The service department says they always connect the 12v battery to a battery tender when updating software. So that's good. Also, apparently, the KIA connect software is different in the US variant. I could not find a way to put KIA connect in offline mode. The menus are different.
@@eurosteve50 Yeah i’ve found out that some dealers have been plugging in 12v charger to keep things alive. A good practise.