The Dual USB Power Bank Module DIY 18650 Lithium Battery with LED. This is the mobile power module Accessories, 18650 Circuit board shell. Meet the individual needs of your DIY, but you must understand basic electronic assembly. Following points when installing products: Battery to parallel, the voltage in 3.2-4.2V can work between, 18650 flat and polymer battery can be. We can connect the battery to the motherboard B negative-, installed against the necessary burning motherboard. New and old battery, model brand inconsistent batteries cannot be mixed. Package Includes: 1 x Dual USB Power Bank Module
