Synergy Digital Speaker Battery, Works with JBL Charge 2 Plus Speaker, (Li-Pol, 3.7V, 6000 mAh) Ultra High Capacity, Compatible with JBL GSP1029102 Battery - Walmart.com
JBL Charge 2 Plus review | TechRadar
JBL Charge 2 | Portable wireless stereo speaker with massive battery to charge your devices
JBL Charge 2 Plus review | 77 facts and highlights
Battery for Speaker JBL Charge 2+ Plus, Li-Polymer 6000mAh 3.7V