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
JBL Xtreme Charging Port Replacement - iFixit Repair Guide
Things You Should Know for Charging Your Bluetooth speaker – HiFiReport