Do you want to build your own QUICK CHARGE power bank from your spare 18650 battery cells?  Then this 18650 5V 1A/2.4A Lithium Battery Digital Display Charging Module is for you. Just like a modern power bank, the module is equipped with Dual USB output to charge the gadgets at 1A / 2.1A. To charge the batteries, this module has two USB inputs one is C-type input, and the other is a MicroUSB input. Onboard, a brilliant blue-colored illuminating LED Display displays the real-time battery percentage in the 0–100% range, as well as the IN and OUT Signal. Furthermore, the board contains a connection for installing an LED to be used as a flashlight, which is generally found on a POWER BANK.