18650 Dual‑Cell Power Bank Case – LED Display, QC 3.0 Fast Charger & Battery Storage for 18650 / 20700 / 21700 Cells

Description:
This power bank case is designed to hold two 18650 (or compatible 20700 / 21700) rechargeable lithium batteries, turning them into a portable power source. The integrated LED display shows the real-time voltage and charge status of each cell, so you always know how much power remains.

It features QC 3.0 fast charging, allowing you to recharge devices quickly and efficiently using the stored battery power. The case also includes multiple safety protections—such as overcharge, over‑discharge, and short‑circuit protection—to ensure your batteries and devices stay safe during use.

The shell is compact and durable, making it easy to carry in your bag or backpack. Whether you're powering phones, tablets, flashlights, or other USB devices, this power bank case provides a versatile and reliable solution using your own high-capacity batteries.