Even the best parties have to end sometime, but your JBL PartyBox Stage 320 can keep the vibe going twice as long with JBL Battery 400. When your rechargeable battery is running out of juice, it takes just seconds to pop a fresh battery into the slot on the back panel. Meanwhile, the battery can recharge in the charging case. You can also charge your tablet or smartphone* with the convenient USB-C port on the case. Double the great times, and enjoy the peace of mind that comes with an official JBL battery. It also can replace the rechargeable battery inside a JBL Xtreme 4 portable speaker and more when it starts to degrade.
(*charging cable not included)
A great host always has a spare battery
Keep the party going twice as long by having a spare JBL Battery 400 with charging case on hand. Just insert it into the battery slot in the back of your JBL PartyBox 320 when the first one loses its charge. It also can replace the rechargeable battery inside a JBL Xtreme 4 portable speaker and more when it starts to degrade.
Powerbank
The JBL Battery 400 with charge case doubles as a powerbank to charge your tablet or smartphone* with the convenient USB-C port on the charging case. (*charging cable not included)
Guaranteed JBL Quality
Give yourself the peace of mind that comes from a trustworthy, reliable JBL Battery 400 that’s guaranteed to work with your speaker.
Compatible with JBL PartyBox Stage 320, Xtreme 4 and more
JBL Battery 400 is compatible with the JBL PartyBox Stage 320, JBL Xtreme 4 portable speaker and more.
