3-Port USB Power Bank Circuit Board: 5V 2.1A Boost Module for DIY 18650 Battery

Elevate your DIY projects with this versatile circuit board, designed to power up your devices using 18650 batteries. Featuring three USB ports, it delivers a 5V 2.1A output, ensuring efficient and reliable power distribution to multiple gadgets simultaneously. Compact and easy to integrate, this boost module is perfect for hobbyists and tech enthusiasts looking to create custom power solutions. Its robust construction and efficient performance make it an essential component for portable charging systems.