Made exclusively for the PartyBox 720, 520 and Boombox 4, the JBL Battery 600 twin pack gives you twice the running time, or more.
Double your playback time
The JBL Battery 600 twin pack makes your PartyBox 720 last twice as long. You can also use the batteries for the PartyBox 520 and Boombox 4, giving you three times the playback time. With a regular battery life of 15 hours, once the supplied battery/batteries is/are exhausted, simply slot in the Battery 600 x2 and keep the party going for a total of 30 hours with the PartyBox 720 or 45 hours with the PartyBox 520.
Fast charge capability
With fast charging capability, the Battery 600 can deliver up to two hours playback time from a quick 10-minute charge.
Monitor playtime in the JBL PartyBox app
Download the JBL PartyBox app and you’ll be able to track your battery’s health. When the Battery SOH (State of Health) status alerts you, simply slot in the new batteries within seconds.
Party for longer, with the JBL Battery 600 x2.