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Bug: incorrect battery warning FW C2E_12231

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  • tksharpless
    replied
    OK, on F/W 02232, battery indication looks right. Thanks again.

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  • DorinDXN
    replied
    That unit should be back on normal now, running Rev. 0 FW.

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  • DorinDXN
    replied
    Thank you, you can try to update that unit, indeed has updated to Rev 1 FW, it should update to Rev 0.

    BTW, Personally I like Rev 0 as it allows me to power it from 5 V to 25 V, that includes some solar panels and 24 V car battery.

    Leave a comment:


  • tksharpless
    replied
    The MAC address is BC-DD-C2-46-00-5B

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  • DorinDXN
    replied
    C2 Rev.0's battery meter was re calibrated, in FW (1)2232

    before update please send the MAC address of the problematic unit to mecha(at)nodalninja com,
    I need to check if the unit is running the correct FW first, I have one report that one unit has received Rev.1 FW update instead of Rev.0 that will explain why the battery meter was off, if is the case,

    Regardless, and for safety, that particular unit will be forced on server to Rev 0. FW at the next update.

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  • DorinDXN
    replied
    Actually something else might happened, please send the MAC of the problematic unit, it is at the bottom of the /config page

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  • DorinDXN
    replied
    It is confirmed, battery meter of Rev 0 is not calibrated properly, will be a fix ASAP, 1 hour

    Rev 1 is Ok

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  • DorinDXN
    replied
    Originally posted by tksharpless View Post
    So can I configure battery check permanently off on the new f/w?
    Set Batt min on empty or 0 in /config, it will stop all warnings and show voltage instead

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  • DorinDXN
    replied
    The voltage meter are different for Rev 0 and Rev 1, however I'll check again and do a re calibration of both, if needed.
    I'll post my findings.

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  • nick fan
    replied
    It looks like the voltage meter for Rev1 C2 is used in Rev0. It will under estimate voltage by 0.6565.
    Rev1 C2 is adjusted to give better accuracy for 4-cell Li-ion batteries.
    You can clear the voltage values in config first. It will be fixed soon. Make sure the firmware states C2E_02231, not C2E_12231.
    There are only a few Rev0 C2 in the world, maybe I should replace it with Rev1 and trash Rev0.

    Nick

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  • tksharpless
    replied
    After pressing [-] the warning stopped and oled shows 10.87 volts. I don't have an adapter to check working voltage, but this seems too low. Moved batteries to other C2 and it shows 16.5V. So I guess the first one may have a hardware issue.
    After update f/w on 2nd unit it shows 96% battery.
    So can I configure battery check permanently off on the new f/w?
    Last edited by tksharpless; May 2, 2021, 05:14 PM.

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  • DorinDXN
    replied
    I'll look into, press [-] at warning, you might get two warnings, if so, press [-] again.

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  • tksharpless
    started a topic Bug: incorrect battery warning FW C2E_12231

    Bug: incorrect battery warning FW C2E_12231

    Mecha C2 E2 E1 unswapped. Just updated and enabled the battery curve for '2500 MaH'.
    Now get continuous low batter warning and web UI shows battery at 0%. Batteries are actually fully charged and voltage is 16.5.
    Can I disable the warning pending a f/w fix?
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