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Fast Charger & DIY Power Bank – Universal USB Charger for 18650, AA, and AAA Batteries

by braveins

Simply insert your rechargeable batteries and use the built-in USB port to charge your phone, tablet, or other gadgets. With advanced safety features and wide compatibility, it's a must-have tool for battery users and tech enthusiasts.

📦 Specifications: 
  • Input: USB 5V/2A
  • Output: 4.2V/1A (18650) | 1.5V/300mA (AA/AAA)
  • Battery Types Supported: 18650 / AA / AAA rechargeable batteries
  • Functions: Charging + Power Bank with USB Output
Fast Charger & DIY Power Bank – Universal USB Charger for 18650, AA, and AAA Batteries



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