RX300 Powerbank getting hot

Discussion in 'Archive' started by Eveland, Jul 19, 2017.

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  1. Eveland

    Eveland New Member

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    Hello

    When i use my RX300 in Powerbank mode the board gets up to 75°C in less than 10 minutes and it will shut off.
    When i vape under 0.3ohms at 100W the board is around 40°C so not as hot meanwhile i'm only using like less than 2W (5V & 0.3A ) with the powerbank mode..
    Any solutions because it's not really usable as a powerbank because it keeps shutting off after a few minutes..

    - Wismec RX300
    - HW: 1.00
    - FW: 170603
    - Tools: 7.1.1
    upload_2017-7-19_20-3-2.png
     
  2. Eveland

    Eveland New Member

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    Here is a recording from when it shuts off @76°C
    upload_2017-7-19_20-0-39.png
     

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  3. maelstrom2001

    maelstrom2001 Developer
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    Hello!
    What about temperature on stock firmware in Power Bank mode? Do not necessarily know the exact value, just compare by touch.
     
  4. Eveland

    Eveland New Member

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    I'm testing with the stock firmware now, but sadly i can't see the live temperatures.. So i'll need to wait.
     
  5. Eveland

    Eveland New Member

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    With the same load the RX300 with stock firmware won't shut off after 15min.. It feels warm/hot, but i can't give you an exact temperature reading with stock firmware..

    Any solutions? Because i'd rather use ArcticFox over stock Wismec firmware..
     
  6. maelstrom2001

    maelstrom2001 Developer
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    Thanks for report, I'll look more closely and later I'll ask you to test the modified version, in this thread.
     
  7. Eveland

    Eveland New Member

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    Okay, thanks in advance :)
     
  8. maelstrom2001

    maelstrom2001 Developer
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    Please try this build: 170720
    Really, I missed switching regulation modes for dual buck boxes. Unfortunately, I can not test it myself, since have no such boxes available. Test it please in the usual way also, I hope that I did not break the main purpose - heat up atomizers :D
    And one more note: when you'll test Power Bank under Device Monitor, switch USB Charge option to Off, 'case this function also heats the board.
     
  9. Eveland

    Eveland New Member

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    Hmm seems like the problem is fixed.
    The temperatures are slowly rising (from 40 to 54 in 10 minutes) with the same load as before.
    I will update this post if there are any new problems about the USB charging.

    Thanks a lot!
     
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  10. Eveland

    Eveland New Member

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    But with your new release (20 july) i can't go into configuration. V7.1.1
    upload_2017-7-20_19-19-26.png
     

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  11. maelstrom2001

    maelstrom2001 Developer
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  12. Eveland

    Eveland New Member

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    You are the MVP!
    Thanks a lot!
     
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