Amazon.com: Replacement Battery for JBL Xtreme 2, Xtreme 3, Battery SUN-INTE-103 5200mAh 7.4V with Tools : Electronics
JBL Xtreme 2 Battery Life - Tom's Tek Stop
100% Original Replacement Battery For Jbl Charge Flip Pulse Xtreme 2 3 4 5 For Harman Kardon Go Play Onyx Mini Speaker Bateria - Mobile Phone Batteries - AliExpress