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Thread: Nitecore Tube - battery is not charging. Troubleshoot / fix

  1. #1

    Default Nitecore Tube - battery is not charging. Troubleshoot / fix

    I purchased a standard Nitecore Tube about year and a half ago, it is no longer charging (via the mini USB). Even after being left plugged in for more than 24 hours.

    At present:
    - Blue charging light stays lit upon being connected to USB
    - Full functions (Off / Low / High) via button while connected to USB
    - zero function when removed from USB connection

    This light was not exposed to excess moisture (not submerged or left in washing machine); it was left in my pocket for several months though, so the battery's charge did deplete substantially.

    Prior to posting here I've searched for UI issues regarding the Tube, and am aware already of the 'lockout' (holding down button to enable/disable) along with need for it to be USB-connected for extended period if battery charge is too depleted. Also viewed a YouTube video where one was disassembled, cleaned and solder-repaired after having been exposed to moisture.

    I disassembled this light (removed 4 tiny screws) and viewed internal circuits, battery for signs of corrosion or broken connections; there was no moisture or visible corrosion. Board is very small size, and haven't done metering / connections check.

    This Tube is no longer under warranty, and I'm simply seeking a way to fix it. (Also happen to own a Vinh-modified Tube which still works great.) As noted, the light functions perfectly when plugged in to USB and its blue charging light is active — just no battery charge apparently occurring.

    Suggestions would be appreciated. Thanks.
    Last edited by torchflux; 01-02-2018 at 06:14 AM.

  2. #2
    KITROBASKIN's Avatar
    Join Date
    Mar 2013
    Location
    New Mexico, USA
    Posts
    2,721

    Default Re: Nitecore Tube - battery is not charging. Troubleshoot / fix

    Battery no longer works? Not the first Tube to do this.

  3. #3
    Flashaholic sp5it's Avatar
    Join Date
    Feb 2005
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    Poland
    Posts
    264

    Default Re: Nitecore Tube - battery is not charging. Troubleshoot / fix

    Open, look for lose battery wire, fix that.
    Mike
    My flashlight is bigger than yours...

  4. #4

    Default Re: Nitecore Tube - battery is not charging. Troubleshoot / fix

    Quote Originally Posted by torchflux View Post
    I purchased a standard Nitecore Tube about year and a half ago, it is no longer charging (via the mini USB). Even after being left plugged in for more than 24 hours.

    At present:
    - Blue charging light stays lit upon being connected to USB
    - Full functions (Off / Low / High) via button while connected to USB
    - zero function when removed from USB connection

    This light was not exposed to excess moisture (not submerged or left in washing machine); it was left in my pocket for several months though, so the battery's charge did deplete substantially.

    Prior to posting here I've searched for UI issues regarding the Tube, and am aware already of the 'lockout' (holding down button to enable/disable) along with need for it to be USB-connected for extended period if battery charge is too depleted. Also viewed a YouTube video where one was disassembled, cleaned and solder-repaired after having been exposed to moisture.

    I disassembled this light (removed 4 tiny screws) and viewed internal circuits, battery for signs of corrosion or broken connections; there was no moisture or visible corrosion. Board is very small size, and haven't done metering / connections check.

    This Tube is no longer under warranty, and I'm simply seeking a way to fix it. (Also happen to own a Vinh-modified Tube which still works great.) As noted, the light functions perfectly when plugged in to USB and its blue charging light is active — just no battery charge apparently occurring.

    Suggestions would be appreciated. Thanks.
    My 2 cents. Give her a kiss for the year+ of good service and let her rest in peace...in the garbage can.




    Time to move along and hunt down a new keychain light.

  5. #5
    A&Q Moderator
    Woods Walker's Avatar
    Join Date
    Jun 2008
    Location
    New England woods.
    Posts
    5,100

    Default Re: Nitecore Tube - battery is not charging. Troubleshoot / fix

    Given the inexpensive price I am in the RIP camp.
    The TK20. Yes it still rocks.

  6. #6

    Default Re: Nitecore Tube - battery is not charging. Troubleshoot / fix

    It sounds like to me that you really love this little light and that you are insanely curious to want to know the issue so you can fix it!

    If so, have at it, and satisfy your curiosity. If a few strikeouts are the prerequisite for hitting it out of the ballpark, who am I to deprive you of such joy upon that ensuing eureka moment?

    Although I lack the technical intelligence to guide you, I will send some lumens to cheer your way!

    - LetThereBeLight!

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