[pfiedler]

Just took delivery of my 2024 iX M60 last week. Love the car. Coming from a X5 M50i, I miss the V8 sound but on the other hand I don't! The car is just smooth as glass and so well appointed.

I'm charging my car at home using an Electrify America Gen2 wall charger. For the first few days, there were no issues with charging. About 4 days ago, my charging sessions would suddenly just stop. Sometimes 4-6 minutes after starting the charge, but occasionally 25-30 minutes after charging started. No explanation in the MyBMW app other than "charging interrupted." I usually charge my car when it's about 50-55% charge left, and set the 80% charge maximum.

I called Electrify America's support people and they checked my charger via an online connection. It seems to be working just fine. I then called BMW iSupport and went through the whole story with them. Their suggestion was to "see the dealership to have the car checked out."

I plan to do that, but I thought I would hit the forum to see if anybody has seen similar issues with charging at a home station. I've tried charging with the car unlocked, the car locked, the auto "lock and unlock" with the digital key turned off, etc. No success.

If anybody has seen this problem, please let me know. If you've found a solution, please share that. Rather frustrating I must say.

After I see the dealer, if they find anything wrong with the car's charging system, I will post that information back in this thread.

Many thanks!

[Pictor]

I'm not familiar with the Electrify America Gen2 wall charger but I'm assuming this is a plug-in model? If so, try setting a lower charge speed and see what happens. It's not entirely unheard of that a plug-in EVSE stops charging because of a GFCI or thermal trip. If it's hardwired, I would only suggest trying a different EVSE in a different location to see if you run into a problem. It's much more likely something is going on between the EVSE and the circuit breaker than a problem with the car so you'll want to rule that out first and save a trip to the dealer.

[doctorzeus]

Is this is a NEMA 14-50 plug in model?
What is your outlet and breaker rated to?

[grueber]

I probably have the same EA charger. Mine had a flaw where the unit could only charge at a low amp speed. EA notified me it was from a bad batch and shipped me a replacement. It’s worked fine since.

Try powering off the EA charger for a minute and powering back on at the circuit breaker. Assuming it’s plugged into a 14-50 outlet would check that it’s not nuisance tripping if you have a GCFI switch installed at the breaker.

[CaboM4]

I'm very sorry to hear you are having issues with this charger. Unfortunately rom what I'm reading here it sounds as if their home chargers are just as reliable as their DCFCs unfortunately.

Assuming this is a NEMA 14-50 wallbox, why not try charging with the included portable wallbox from BMW to see if you have the same issue with another wallbox or the same results. This will tell you with greater certainty if the issue is on the vehicle or wallbox side.

I had issues with my X5 45e giving me the same type of charging errors / scenario and it turned out not to be the vehicle with the J1772 Cable of the wallbox

[pfiedler]

Originally Posted by doctorzeus

Is this is a NEMA 14-50 plug in model?
What is your outlet and breaker rated to?

My charger is hard wired directly to my electrical panel. I have a 50 amp breaker and have the charge rate set to 48 amps. The BMW iX support person I spoke to said that the 48 amp setting was fine.

[MAMOHT]

Breakers can safely handle about 80% of their rated capacity. That is the reason why there should be the 20% buffer. 60amps rated breaker can safely handle 48amps. 50amps for 48amps is pushing it.

[pfiedler]

Originally Posted by grueber

I probably have the same EA charger. Mine had a flaw where the unit could only charge at a low amp speed. EA notified me it was from a bad batch and shipped me a replacement. It’s worked fine since.

Try powering off the EA charger for a minute and powering back on at the circuit breaker. Assuming it’s plugged into a 14-50 outlet would check that it’s not nuisance tripping if you have a GCFI switch installed at the breaker.

I’ve already tried the reset by killing power to the EA at the breaker. My charger has built-in GFCI (if hard wiring), so no need to have redundancy at the panel.
I did install a Uniden R8 radar detector and a Garmin dash cam. Both are taking power from a 12v source at the mirror. With the iX, power to the mirror stays “hot” for several minutes after leaving the car. Perhaps this is contributing as the electric cars especially have a very sensitive CANBUS electrical environment.
I have an appointment Monday at my dealer to get this checked out. I’ll just have to keep experimenting until then. 😵‍💫

[pfiedler]

Originally Posted by MAMOHT

Breakers can safely handle about 80% of their rated capacity. That is the reason why there should be the 20% buffer. 60amps rated breaker can safely handle 48amps. 50amps for 48amps is pushing it.

Okay, I’ll try backing the amps down and see that helps. Thank you for your suggestion! 🙏👍

[Pictor]

The BMW support person should have known better. A 50 amp breaker will support 40 amp at the EVSE. You’re limited to 9.6kW and anything higher will lead to problems.

[pfiedler]

Originally Posted by Pictor

The BMW support person should have known better. A 50 amp breaker will support 40 amp at the EVSE. You’re limited to 9.6kW and anything higher will lead to problems.

I’ve backed the setting down to 32 amps. Fingers crossed.

[CaboM4]

Originally Posted by pfiedler

I’ve backed the setting down to 32 amps. Fingers crossed.

This should definitely resolve the issue. You are pulling too much amperage for that breaker running at 48A. Not surprised its popping and charging is stopped after a few minutes once things heat up

[pfiedler]

Originally Posted by CaboM4

This should definitely resolve the issue. You are pulling too much amperage for that breaker running at 48A. Not surprised its popping and charging is stopped after a few minutes once things heat up

CaboM4,
I’ll keep you posted. Thanks again for the advice.
🙏😁

[CaboM4]

Originally Posted by pfiedler

CaboM4,
I’ll keep you posted. Thanks again for the advice.
����

depending on the AWG wiring used to hardwire your unit as well as the distance from panel to wallbox, you can possibly swap out the breaker to an appropriate 60A given the wiring is thick enough to be safe for that current draw to get the full 48A

[sor]

Probably not helpful but a good chunk of the Tesla gen 3 wall connectors manufactured in 2019/2020 did this. It was due to overheating of the wall connector. It would charge fine for a bit and then stop with a red blinking light. When it cooled down it would start up again, and cycle like that.

I only mention it because it may be something similar with the EA. As others might have suggested maybe you can try lower power or using the stock power cable that is included with the car to prove it’s something with the EA one.

[sor]

I missed where OP said that this was tripping the breaker and they had to reset each time, is that the case? I’d still stick to 40A max on a 50A breaker, but if it isn’t tripping then that wouldn’t explain the stop in charging.

[pfiedler]

Originally Posted by sor

Probably not helpful but a good chunk of the Tesla gen 3 wall connectors manufactured in 2019/2020 did this. It was due to overheating of the wall connector. It would charge fine for a bit and then stop with a red blinking light. When it cooled down it would start up again, and cycle like that.

I only mention it because it may be something similar with the EA. As others might have suggested maybe you can try lower power or using the stock power cable that is included with the car to prove it’s something with the EA one.

Agreed. I have reduced the power output to 32 watts. The car is fully charged (80%) right now, so I won’t be able to test this very likely recommendation until tomorrow. As my EA charger is hard wired, I don’t have a 240v outlet with which to test the BMW cable that came with the car. I’m hopeful that the lower charge rate might make the difference.
Thank you for your kind advice. 🙏👍

[pfiedler]

Originally Posted by CaboM4

depending on the AWG wiring used to hardwire your unit as well as the distance from panel to wallbox, you can possibly swap out the breaker to an appropriate 60A given the wiring is thick enough to be safe for that current draw to get the full 48A

Duly noted. 😁

[pfiedler]

A few days after purchasing the car, I had a Uniden R8 radar detector and Garmin Dashcam 67 installed. These devices tap into a 12v source at the rearview mirror.

When the car is turned off and the driver exits, power remains active to the detector and camera for about 10 minutes. This is the nature of that particular circuit, it seems.

I know that BMWs have VERY sensitive electrical systems. Perhaps the fact that these stay on for about 10 minutes may impact the charging process.

Today, after parking the car, I attempted another charge. As before, the charging stopped by itself after about 6-8 minutes. I then disconnected both the detector and the camera from the power source and proceeded to attempt another charge of the car. The charging process went through without a hitch.

Soooooo...maybe this is where the problem lies? I'm hoping that the car throws error codes so that when I go to the dealer on Monday morning, they may see some indication of what's happening.

Fingers crossed!!

[sor]

I would be quite surprised if it had something to do with the 12v accessories. Really I think you need to find an alternative AC charger to really tell if it’s the car or the EA kit.

[pfiedler]

I'm sure the dealer will use theirs on Monday to test that theory.

It's an evolution and a learning process. Makes things much more interesting this way!

[Barry123]

I haven't read the full thread, but wonder why you went with a third party charger, rather than just using the one BMW supplied.

FWIW, I have a Uniden radar detector powered by an ACC circuit in the fusebox in the right rear. It stays on for 4 minutes after powering off the car. I've had no issues home charging with the BMW-supplied charger.