Dual Usb 18650 Battery Charger Pcb Power Module 5v 1a 2.1a Mobile Power Bank Accessories For Phone Diy Led Lcd Module Board - Integrated Circuits - AliExpress
Battery Charger PCB Power Module Dual USB Power Bank 18650 Accessories Board | eBay
USB LiIon/LiPoly charger [v1.2] : ID 259 : $12.50 : Adafruit Industries, Unique & fun DIY electronics and kits