The 18650/21700 DIY Power Bank Case is a versatile and compact solution for creating a personalized power bank. Designed to support both 18650 and 21700 lithium-ion batteries, this case provides flexibility for your power needs. Its mini and portable design makes it easy to carry, while the USB output ensures compatibility with smartphones, tablets, and other USB-powered devices. Ideal for DIY enthusiasts, this power bank case allows you to build a reliable charging solution tailored to your preferences.

Key Features:

• Supports 18650 & 21700 Batteries for customizable capacity options
• Mini & Portable Design for effortless travel and everyday use
• USB Output for charging a wide range of devices
• Durable Build for long-lasting reliability and performance
• LED Indicators to track battery levels and charging progress
• DIY Assembly for a fun and functional project

Whether for daily use or as a backup power source, the 18650/21700 DIY Power Bank Case is the perfect blend of functionality and portability.

Power Your Way—Get the 18650/21700 DIY Power Bank Case Today!