Portable Phone Power Bank Case | DIY 18650 with Keychain

Portable Phone Power Bank Case | DIY 18650 with Keychain

Stay charged on the go with this compact and convenient power bank case. Just insert a single 18650 battery (not included) to create your own backup charger for your phone.

Features:
🔌 USB output for charging phones and small devices
🔑 Keychain design for easy carrying
💡 LED indicator to show power status

Perfect for: Quick backup charging, travel, or everyday use.