Yopeissn PD100W DIY Power Bank Case Aluminum Shell 21700 No Battery No Welding Charge Phone Laptop Two Way Fast Charging

Versatile & Portable: Ideal for travelers and tech enthusiasts, this easy-to-assemble kit is and compact, making it easy to carry in backpacks or bags. High-Speed Charging: Features dual USB-C ports for two-way fast charging. Power up your smartphone and laptop quickly and efficiently, anywhere and anytime. Enhanced Safety: Constructed with premium materials, ensuring a build that protects against overcharging, overheating, and short circuits, ensuring your devices are safe while charging. Advanced DIY Power Bank: This kit includes an aluminum case designed for assembling a custom power bank, supporting both 21700 and 18650 batteries. Create your own high-capacity power bank without any need for soldering! Note: The case comes without batteries. Please you purchase the appropriate 21700 batteries separately.