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Thread: Battery bulge?

  1. 08-17-2023, 10:45 AM #1
    Ris Liam
    Ris Liam is offline
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    Default Battery bulge?

    I am wondering if this battery's slight bulge is just part of this wired battery or an actual issue. It seemed to charge fine and had a no load voltage just over 4 volts after a full charge. Let me know what you think. IMG_5031.jpgIMG_5032.jpg Battery is a TCSS Panasonic 18650 3400 mAh
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  2. 08-17-2023, 12:26 PM #2
    RavenXp
    RavenXp is offline
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    Hmmm... that looks to me like the cell is deforming and pushing the protection PCB out. You said this cell was from 2015? How was it stored? Was it stored at half charge, fully charged, or completely drained?
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  3. 08-18-2023, 05:59 AM #3
    Ris Liam
    Ris Liam is offline
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    Stored in various states. I usually had this charged and used slightly, then put away. I don't think I've used this cell for at least 1 year before charging it recently.
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