18650 to 21700 Battery Adapter Sleeve Case Black Convert Your Batteries for Wider Use in Flashlights Mobile Power Battery Size Converter
Product Description
18650 to 21700 Battery Adapter Sleeve Case Black Convert Your Batteries for Wider Use in Flashlights Mobile Power Battery Size Converter
- Perfect for use in a variety of electronic devices such as high powered flashlights and portable mobile power
- Essential accessory for your travel energy needs
- Convert your existing 18650 battery into the larger 21700 size
- 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
Technical Specifications
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