Batmax Batería de 6200mAh para JBL charge 2 + charge 2 plus charge 3, versión 2015, batería de repuesto para Altavoz bluetooth GSP1029102R|Baterías digitales| - AliExpress
JBL Charge 4 Review: A Stellar Waterproof Speaker
JBL Charge 4 Battery
JBL Charge 4 Portable Waterproof Wireless Bluetooth Speaker with up to 20 Hours of Battery Life - Teal : Amazon.ca: Electronics
JBL Charge 4 Review: A Stellar Waterproof Speaker
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JBL's waterproof Charge 4 Bluetooth speaker packs 20 hours of battery life at $120
JBL Charge 4 - Portable Bluetooth Speaker with built-in powerbank
jbl charge 4) the speaker doesn't make any sound not even the little on/off chime. i tried connecting via aux and it still didn't work. also, the battery life indicator is on