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Budget Battery Capacity Readout

Discussion in 'Clarity' started by MrFixit, Feb 27, 2021.

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  1. Jul 4, 2022 #361
    Reyn

    Reyn New Member

    Long Beach, CA

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  2. Jul 10, 2022 #362
    moka

    moka New Member

    Are there other apps besides Car Scanner that can read the battery data?
     
  3. Jul 10, 2022 #363
    MrFixit

    MrFixit Well-Known Member

    Maryland
    The problem is that the Clarity uses a longer message length. This causes two problems - First, many OBD adapters fail, and Second, even with a 'good' adapter, many Apps fail. We tried one of the most popular ones (Torque, or Torque Pro) and it could NOT handle the longer messages that the Clarity uses. We found that Car Scanner worked (AND the developer was very responsive and incorporated our Clarity PID's into his App).

    What is your objective? We have identified 3 known good ways to obtain the Electric Powertrain data. First, Autel, with the AP200 and the Honda Beta Code that we can obtain authorization for. Second, a 'good' ELM327 OBD II adapter (known good is the Vgate iCar) with Car Scanner. Third, the same known good adapter used with a custom program to read data directly to a PC and generate reports.

    Is there some reason that none of these appeal to you? If so, please elaborate as to why. In theory, with a good ELM327 adapter, any App could read the data, but you (or the App developer) would need the PID's that we have identified, and they would need to support longer messages than what is typical.
     
    Last edited: Jul 10, 2022
  4. Jul 21, 2022 #364
    Rajiv Vaidyanathan

    Rajiv Vaidyanathan Active Member

    I really hope I don't irritate @MrFixit with this question, but I tried reading through the first few pages of the budget battery readout thread and got lost. As a "non-car" guy, I'd love to know the battery capacity and amount of degradation in my 4 years of owning the Clarity (I used to get 55+ in the Duluth Summers, but now only get 42+). Maybe it's a battery problem, maybe not. But how do I tell.

    For a cartech novice like me looking for a user-friendly answer to the question, my understanding from what I read about the easiest way to do this is:

    1. Buy an ODB scanner (I see there are a ton of "vGate iCar" models - which one should I get?)
    2. Get an app that will interpret the scanner data (CarScanner?)

    Presumably, CarScanner will spit out a number in an easy to find location that I can compare to others to see if my degradation is normal?
     
  5. Jul 21, 2022 #365
    MrFixit

    MrFixit Well-Known Member

    Maryland
    I know these threads have become a mess.
    I am working on a "more concise" how-to which should be much easier to use.

    It is not quite ready for general release, but I will send you a PM with a link and let you have a look.
    Just provide me feedback if you see room for improvement.
     
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  6. Jul 21, 2022 #366
    bpratt

    bpratt Active Member

    I'm using the Vgate Icar pro BLE 4.0 and it works great. However, it is now $7.00 more at Amazon than what I paid. You could buy that now and I'm sure Mr. Fix It will answer the rest of your questions in the PM.
     
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  7. Jul 22, 2022 #367
    bigbug

    bigbug Member

    Vgatemall is selling it for $21.99 but not sure how long the shipping takes

    https://www.vgatemall.com/productinfo/552033.html
     
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  8. Jul 25, 2022 #368
    Domenick

    Domenick Administrator

    2018 Tesla Model 3 Long Range RWD
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  9. Aug 2, 2022 #369
    KeeFeeRe

    KeeFeeRe New Member

    Hi all! For those who were looking for a link to aliexpress to buy an adapter - here I bought it, very quickly delivered, worth 16 bucks. I'm from Ukraine, we have a lot of cars from America and Canada here :). Regarding the topic - I could not get the battery capacity using Torque Pro, although I entered the parameters correctly on the first page. Why? The adapter's buffer is not cut off, I'm attaching screenshots of the settings. But everything worked out with the Clarity PHEV profile in the Car Scanner application. The readings are as follows - capacity 47.88Ah, mileage 96640km, year of production 11/17. The mode of use is unknown, I will assume 75% EV.
    20220802_144053.jpg 20220802_144105.jpg 20220802_144118.jpg 20220802_144126.jpg Screenshot_20220802-210549_ELM327 Identifier.jpg Screenshot_20220802-211334.jpg Screenshot_20220802-213658_Torque.jpg Screenshot_20220802-214328_Torque.jpg Screenshot_20220802-214346_Torque.jpg
     

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  10. Aug 2, 2022 #370
    MrFixit

    MrFixit Well-Known Member

    Maryland
    As we stated in this forum, Torque Pro does NOT work. Your screenshot is just demonstrating that the iCar OBD2 adapter does not have a buffer problem. We already knew that... The problem with Torque Pro is internal where the offset required to obtain the Battery Capacity is too large for the App to handle and it can't get to the correct data word. Stick with Car Scanner.
     
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  11. Aug 2, 2022 #371
    KeeFeeRe

    KeeFeeRe New Member

    It turns out that Torque Pro worked when the screenshots at the beginning of this thread were created, but now it is "broken"? ok I will use Car Scanner, thanks!
     
  12. Aug 3, 2022 #372
    PDX Clarity

    PDX Clarity New Member

    At some point in this very long thread someone requested that we all post information on our battery condition. I'm using the Car Scanner app and it is super easy to get the requested information. If there is still interest here are the data for my car:
    2019 model; 11,050 miles; Battery Capacity (Total) = 53.72Ah

    If my rudimentary knowledge of electricity is correct, to convert to kWh I take the Car Scanner reading of battery voltage and multiply by the capacity:
    316V X 53.72Ah = 16.975 kWh

    This seems awfully close to original spec of 17kWh. :)
     
  13. Aug 3, 2022 #373
    coutinpe

    coutinpe Active Member

    Phoenix AZ
  14. Aug 3, 2022 #374
    coutinpe

    coutinpe Active Member

    Phoenix AZ
    I just went to Amazon to buy the vGate iCar pro 3.0. It seems the version depicted on the GitHub post (Thank you Mr. Fixit!) is no longer available. There is a BT3.0 but it says it's only compatible with Android and Windows, not iOS. I decided to buy the Vgate Bluetooth 4.0 (BLE) for iOs/Android instead. Will get it on Friday. We'll see what happens...
     
  15. Aug 3, 2022 #375
    PDX Clarity

    PDX Clarity New Member

    Oops. I just found the spreadsheet where this forum is tracking battery condition:

    Sharing of Battery Capacity Measurements
    In the interest of learning more about HV battery behavior, InsideEVs forum members are cooperating and entering battery measurement data into a shared spreadsheet. This will help identify trends and you can easily see if your Clarity is out of character with others. You are encouraged to participate in this important effort, and you can get to the spreadsheet HERE
     
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  16. Aug 7, 2022 #376
    coutinpe

    coutinpe Active Member

    Phoenix AZ
    The Vgate Bluetooth 4.0 BLE worked great with CarScan on iOS (iPhone 7). 52.5 Ah at 3.5 years and 28800 miles (approx.) Still need to go back and check the cells. Silly question: Can I leave it plugged in without draining my 12V battery? At my age and spine it's a PITA (almost literally) to get down to that ODBII port which (to add insult to injury) I found loose and had a very hard time retrieving it from that metal enclosure.
     
  17. Aug 7, 2022 #377
    MrFixit

    MrFixit Well-Known Member

    Maryland
    See Post #37 and #42 in this thread. I will probably add something about this on the new GitHub pages to address this issue.
    My OBD2 port also became loose, and I use the "Y" cable to give myself better access (plus I have another device also connected to the port - A blind spot warning device).
     
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  18. Aug 7, 2022 #378
    MrFixit

    MrFixit Well-Known Member

    Maryland
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  19. Aug 10, 2022 #379
    coutinpe

    coutinpe Active Member

    Phoenix AZ
    Got my "Y" cable, my back and I thank you for the advice! But then I thought: wouldn't it be nice if we could see all that data in our car's screen? Could we somehow persuade the developer to make the CarScan app "CarPlay/Android Auto compatible"?
     
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  20. Aug 11, 2022 #380
    MrFixit

    MrFixit Well-Known Member

    Maryland
    I have no experience with Android Auto, but I can ask the developer.

    After googling around, it seems that an App must be approved by Google before they will allow it to be supported by Android Auto. This I'm sure introduces a layer of bureaucracy for any App developer who is interested in this. The reason is obvious - safety. Nobody wants people driving around while watching The Simpson's on their infotainment center.

    On the other hand, one could argue that displaying a 'dashboard' from Car Scanner is just enhancing the vehicle's normal instrumentation and if it is simply a display with no interactions, it [should] be safe?

    If I were especially interested in this, I would also look for other 'generic' ways to cast the screen from the phone to the vehicle display too. I'm sure there are probably some ways. It is possible that you would need to root your phone (or the infotainment center - Honda Hack?).

    Here is one approach I saw that reportedly does not require rooting your phone. It supposedly fakes Android Auto into thinking that an arbitrary App is Google Approved for AA:
    https://www.xda-developers.com/install-unapproved-apps-for-android-auto/

    I do not advocate or condone anything like this, but Google can be your friend when searching for 'solutions'. Let us know if you stumble on something that works for this. I will let you know what the Car Scanner developer says.
     
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