3400mAh Extended 533-000146 Battery Replacement Compatible with Logitech UE Megaboom 3, S-00171 Wireless Waterproof Bluetooth Speaker - Newegg.com
Gikysuiz Replacement Battery for Logitech UE MegaBoom Series Wireless Bluetooth Speaker fits Part Number 533-000116 533-000146 7.4V 3400mAh - Newegg.com