Fried battery

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  1. Posts : 99
    Windows 7 pro x64 (or win 10 pro)
       #1

    Fried battery


    Hi everyone, i was pushing a bare ground wire from a usb into the ground port on a pc fan, it was still plugged into the pc. This caused an electric arc, causing a glowing flame effect, not a real flame though, similar to when you plug something into a cheap travel adapter. All my usb ports work fine still. Laptop works ok. My only concern is will the battery be damaged by this? So far the battery is discharging at the normal rate
      My Computer


  2. Posts : 10,485
    W7 Pro SP1 64bit
       #2

    There are battery charge/discharge circuits that limit the current that can flow each way. Every reputable battery manufacturer uses a charge/discharge chip set that protects against short circuits. Your battery is fine.
      My Computer


  3. Posts : 20,583
    Win-7-Pro64bit 7-H-Prem-64bit
       #3

    Hi,
    Yep not a good idea to work with wires while the system is hot
      My Computer


  4. Posts : 25,847
    Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
       #4

    Okay, make my day and explain why one would do such a thing.

    From post #1
    i was pushing a bare ground wire from a usb into the ground port on a pc fan, it was still plugged into the pc.
      My Computer


  5. Posts : 99
    Windows 7 pro x64 (or win 10 pro)
    Thread Starter
       #5

    Layback Bear said:
    Okay, make my day and explain why one would do such a thing.

    From post #1
    i was pushing a bare ground wire from a usb into the ground port on a pc fan, it was still plugged into the pc.
    Had plus minus wires inserted into fan header to test a fan. Fan stopped when one of the wires came loose. Usually id unplug it then fix it but i was lazy and fixed it while it was still plugged in. It was a dumb move
      My Computer


  6. Posts : 20,583
    Win-7-Pro64bit 7-H-Prem-64bit
       #6

    Hi,
    Most people might have used a port of a known good fan to test another fan with,
    Still shutting down first though and restarting....
      My Computer


  7. Posts : 99
    Windows 7 pro x64 (or win 10 pro)
    Thread Starter
       #7

    ThrashZone said:
    Hi,
    Most people might have used a port of a known good fan to test another fan with,
    Still shutting down first though and restarting....
    Yes it was stupid, but everything still works (so far). Im so glad i didnt damage the laptop
      My Computer


  8. Posts : 99
    Windows 7 pro x64 (or win 10 pro)
    Thread Starter
       #8

    Would it be safe to continue making my usb fan but cut and solder and insulate the connectors for extra safety. Would the usb port still be able to drive the usb fan after that. Things all work fine, but what kind of minor damage could there be that arnt effecting me
      My Computer


  9. Posts : 25,847
    Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
       #9

    Please post a website of the fan you are trying to use.
      My Computer


  10. Posts : 99
    Windows 7 pro x64 (or win 10 pro)
    Thread Starter
       #10

    Layback Bear said:
    Please post a website of the fan you are trying to use.
    Just an old pc fan i got from my computing teacher. Dc brushless
      My Computer


 
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