JBL Extreme Battery Replacement Lipo to Li-ion - YouTube
How to Fix NOT CHARGING JBL SPEAKER AND RESET TO FACTORY SETTINGS i Yes it works - YouTube
JBL Xtreme 2 review - SoundGuys
Amazon.com: JBL Xtreme 3 - Portable Bluetooth Speaker with IP67 Waterproof and InfinityLab InstantGo 10000mAh Wireless Power Bank (Camo/Black) : Electronics
JBL Xtreme review: An old speaker keeps up with the times