Amazon.com: WRUMI 4000mAh Replacement Battery for JBL Flip 4, Flip 4 Special Edition, Flip4, GSP872693 01 3.7V : Electronics
Amazon.com: WirelessFinest High Capacity Replacement Battery + Tool for JBL Flip 4 Speaker or Special Edition Model GSP872693 Li-Polymer 3.70V 3000mAh/11.10Wh Repair Power : Electronics
Speaker Battery 2000mah Aec653055-2p For Jbl Flip 2 (2013), Flip Ii (2013),please Check The Connector If Is 3 Wires. - Digital Batteries - AliExpress
JBL - Flip 2 Battery Replacement
Amazon.com: Cameron Sino 2200mAh Li-Polymer battery for JBL Flip 2, Flip II Speaker Fits JBL JN151PH13849, PR-652954 : Electronics
JBL Flip 2 Battery
Amazon.com: MPF Products 2000mAh AEC653055-2P Replacement Battery Compatible with JBL Flip 2 (2013) Portable Bluetooth Speaker with Installation Tools - 3 Pin Connector : Electronics