Do we have any information as to whether this app is reliable / accurate?

 

It is in beta. It is written by the same folks who bring you BimmerCode. That's enough for me to personally try it. As this moves through the beta process, I expect we'll learn more about its accuracy. If @i4m50Norway isn't one of the first to test it and compare it to what he's been doing, I'll be shocked.

 

The maximum energy content reported by BimmerFlow is consistent with what CarData report. The only issue that CarData numbers oscillate between 75 and 80 kWh for me: for example 76, 77 and 78 kWh were reported on 12/28, 12/30, and 1/2/24. There is no particular correlation I can see: On 12/29 I charged from 10% to 80% in 28min with DC (EA reported it took 57.5 kWH) and reported capacity increased from 76 to 77kWh.

 

What does your statement that it is consistent with CarData mean, since CarData isn't consistent with itself?

 

BimmerCode team is top notch. This is why I trust their software over any other coding software with my car.

Having said, what a great tool for buyers that are in the market for a used i4.

 

BimmerCode team is top notch. This is why I trust their software over any other coding software with my car.

Having said, what a great tool for buyers that are in the market for a used i4.

Yeah... and those number of full charges compared to total charges will change the value of a car for in-the-know buyers.

 

One of the most interesting numbers for me:

Charged: 7,937 kWh
Discharged: 9,465 kWh
Recuperated: 2,058 kWh

In other words, more than 20% of my energy use is recuperated!

 

To make things more confusing I can take from the same CarData report "Remaining electric range in mi" (162.79mi), "Average electric consumption" (3.23mi/kWh), "Charging status of high-voltage battery" (58%) and wonder why "Energy content of the high-voltage battery" (78kWh) is different from 162.79mi / 3.23mi/kWh / 58% = 86.9kWh. BimmerFlow reported 78kWh and 347mi range. The only thing that CarData and charging data are consistent that averaged degradation of the battery over the last 12 mo/15,000 mi (Feb.23-Jan.24) is ~<1 kWh.

 

Is it supposed take a long time on connecting.. screen. I never got past it.

 

Mine took 15-20 seconds . I made sure I was connected to the Bluetooth OBD2 adapter first before hitting connect in Bimmerflow and selecting the correct adapter. I’m using OBDLink MX.

 

Pretty cool. I just installed, and I'll give it a shot when I get out to the car and plugin the ODB2.

 

Cool beans.

Any suggestions on how to get an invitation to beta test from the developer?

 

Cool beans.

Any suggestions on how to get an invitation to beta test from the developer?

Download TestFlight app on your iPhone, open the app to a point where it’s asking for a code. Then close it and click on the link on the OP.

 

I'm not really sure how helpful this information is to us. I suppose if you can "prove" your battery hasn't degraded, you could try to get more money for the car when you sell it. If your battery has degraded, you probably aren't going to want to advertise that. Furthermore, given the CarData stuff, it seems like the information isn't reliable yet (or maybe ever). Just not sure I want to know. If your battery has degraded faster than average, BMW isn't going to do anything about it anyway. So your just pregnant with information you probably wish you didn't have and you'll be frustrated that you got a bad battery (bad luck of the draw) compared to others which is in fact a thing.

 

Easy. You will not need to advertise. Used car buyers will not buy 2nd hand electric cars without a possibility to read out these kind of stats at least SoH. You can say NO, but will walk away to the next owner who plays with open cards.
SoH is a key factor, will become standard soon.
That is an other question how reliable these kind of readings but seem correct with 1-2% accuracy and will become more and more accurate by the time as software developers learn more.
And yes, SoH percentage will influence the value of the car when the time comes to sell. A lot.

 

Perhaps the most interesting finding so far is the difference between @cruzer666 and me since I charge to 100% more frequently... and I have seen greater degradation than he has. It's going to change some of my behavior as a result (fewer 100% charges even when I go up to Copper).

I suspect I have more DCFC than he does, too, but we haven't compared that. I'm a bit below the curve and he's above it.

 

CarData shows a BMS estimation of battery capacity, not necessarily battery health. BimmerFlow is using all historical charging and trip data available in the car as well as high voltage battery data and shows a more accurate battery health number. Likely the app will mature to show different other metrics, like AC/DC charging times.

Of course owners that charge to 100% consistently and go to 0% frequently will try to discredit this data if unfavorable since it makes their car less desirable.

I said this when I got the car over a year ago, we will get the ability to show battery health, and here it is.

 

Well isn't that because you drive up out of Boulder/Denver to go skiing with quite a bit of elevation change?

 

Just joined. Thanks for the opportunity. Fast connection, user friendly structure, well done.
Was looking for a software like this, very happy.

 

Check that error!

 

 

Would be happy to do, but the software was not available that time, 8 weeks ago... Anyway my low milage can be a relatively good reference (4026km/2,516mi at reading).
All together that could be a useful idea to collect the data. We are doing it, one of us handling it (making a structure) on other brand's forum. Collected already lots of data and able to understand our cars better as time is passing by.

 

I think I might be winning? Or losing?

 

I think I might be winning? Or losing?

Some more proof that this isn't calendar time. 😉

 

12mos/15kmi of CarData. Car was delivered in November and initial degradation is not available.

 

That’s a lot of miles for 1 year. 9 to 10 percent in 1 year would be a lot of degradation and at least in the Tesla world would be high. I had about 8 percent loss in my Tesla over 2 years and even that was a bit high.

So not just calendar aging impacts battery health, then, correct ?

My car has 2k miles. Delivery in November. What’s the BT dongle needed? I hope I’m not sorry I went checking on this. lol.

This one is made for BimmerCode/Utility/Flow:
https://a.co/d/eqBh92X

There are pricer options though like OBDLink MX, but this one is wireless and should get the job done.

 

So not just calendar aging impacts battery health, then, correct ?

This one is made for BimmerCode/Utility/Flow:
https://a.co/d/eqBh92X

There are pricer options though like OBDLink MX, but this one is wireless and should get the job done.

Thanks. Scared ….

 

Let’s remember the app is in Beta and not rush to any judgement at this point.

 

Totally agree that was my original point but several jumped in to defend it.

 

The good news is because performance seems to hold at lower SOC I don’t feel compelled to charge to 80 every night which theoretically means I can keep my battery at a lower SOC overall and in turn means less degradation (of the non calendar type).

 

Well, those of us who already has a hardware tool (OBD reader) what can we loose to join(?)
Compare to Car Dada it is fast, well structured and much more accurate on SoH. Actually Car Data offers a simple rounded available kWh number not SoH. Voltage by cells on different SoCs also very useful data next to many others.
In my case Car Data shown 77kWh available (SoH ca. 91-92%) since de car new that is impossible. So I rather believe Bimmercode on this side.

 

It’s not working with my BU Wi-Fi adapter. Bimmercode app works fine. Hopefully a bug that will be quashed. I waited 3 minutes and it didn’t connect, but didn’t throw an error either.

 

Same here my adapter isn’t working at all. Other apps worked fine.

 

@Clerkpalmer You have to differ between degradation and temporary capacity loss due to environmental conditions. So if for example your battery is at 92% in the cold, this may as well just be 5% degradation and 3% temporary loss which can be recovered when it's getting warmer. So while you obviously will not get the 5% back, you can still go back up to 95%.
As far as I know there's no way to actually know what kind of capacity loss there's at play, so it might even be only 2% degradation and 6% temporary.

I haven't tested the app yet (only installed it), but for me the most important thing for this to show would be temperature. Give me an option to see the cell temperature (Min/Avg/Max) and I will buy it in a second and get a wireless adapter. Live data in general. I can get all other data from the online report that I've been downloading on every first of the month to analyse sometime in the future.

So my wishlist would be:
1. live temperature readings for battery AND motor
2. live capacity reading
3. live cell voltage with deviation
4. estimated max charging rate (like VW does in ID7)

 

Thanks, @phchecker17! I do not see temperature listed in the app, so hopefully they'll add it.

 

Temperature added, percentage of full charges and others.

 

How I can get invitation from the developer?