Rapthor 10000mAh Replacement Battery for JBL Xtreme Bluetooth Speaker – Rapthor Batteries
5000mAh GSP0931134 Battery Replacement for JBL Xtreme Wireless Bluetooth Speaker - Walmart.com
Amazon.com: for JBL Xtreme 2 (NOT Xtreme 1) High Capacity Battery Replacement Repair + Tool for JBL Xtreme 2 Portable Bluetooth Speaker 5200mAH Li JBL Model XTREME2BLKAM Part 2INR19 66-2 : Electronics