Amazon.com: LIONX Battery Replacement for Speaker Fit Model PartyBox 100 Part Number SUN-INTE-260 2600mAh / 37.44Wh 14.4v Li-ion 106.00 x 104.50 x 26.50mm Black : Electronics
Amazon.com: 13400mAh High-Capacity Extended SUN-INTE-125, 2INR19/66/4 Battery Replacement Compatible with JBL PartyBox 300 High Power Portable Wireless Bluetooth Party Speaker : Electronics