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    18650 to 21700 Battery Adapter Sleeve Case Black Convert Your Batteries for Wider Use in Flashlights Mobile Power

    $6.99

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    Product details

  • Brand: GOLOVENLD
  • Voltage: 3.7 Volts
  • Manufacturer: GOLOVENLD

    • About this item

  • 18650 to 21700 battery conversion cylinder, a practical solution for upgrading your power sources without the need for new batteries.
  • Craft from and metal, for long time use.
  • Convert your existing 18650 battery into the larger 21700 size.
  • for use in a variety of electronic devices such as high powered flashlights and portable mobile power.
  • Essential accessory for your travel energy needs.