HQRP 6000mAh Battery for JBL Charge 2+, Charge 2 Plus, Charge 3(2015 Version only), GSP1029102R P763098 Portable Bluetooth Speaker - Walmart.com
3.7V Speaker Battery Fits JBL Charge, Charge 2+, Charge Plus
Original Replacement Battery Gsp1029102a 6000mahh For Jbl Charge2 Plus Charge2+ Charge 2 Plus Bluetooth Outdoor Speaker Battery - Mobile Phone Batteries - AliExpress
Guide to fix battery problems & JBL Charge 2 Battery Replacement - Repair And Rework - YouTube