SOLVED: UE Megaboom will not charge (light still flashing) - Logitech UE MegaBoom - iFixit
Ultimate Ears Boom 3 Portable Bluetooth Speaker - Black for sale online | eBay
Amazon.com: Long White 10Ft USB Power Charge Cable for Ultimate Ears UE Wireless Charging Dock, Boom 3, MEGABOOM 3, Blast, MEGABLAST, Roll & Mini Boom (Cable Only) : Electronics