JBL | Battery 400 add-on battery for PartyBox Stage 320 & Xtreme 4

Keep the Party Going Twice as Long with the JBL Battery 400

Even the best parties must end, but your JBL PartyBox Stage 320 can keep the vibe alive twice as long with a spare JBL Battery 400 at hand.

Double Your Party Time

When your rechargeable battery runs out, it only takes seconds to swap in a fully charged battery via the rear panel slot. Each battery provides up to 18 hours of playtime, allowing you to extend your parties to 36 hours with a spare battery. Double the good times and enjoy the peace of mind that comes with an official JBL battery.

Versatility and Compatibility

The JBL Battery 400 can also replace the rechargeable battery inside a JBL Xtreme 4 wireless Bluetooth™ speaker when its performance starts to decline. It’s the ideal solution to extend the lifespan of your JBL devices.

Eco-Friendly Packaging

Each battery comes in FSC-certified packaging, printed with soy-based ink, for a reduced environmental footprint.

Extend Your Parties with JBL

Whether it's a house party or an outdoor event, the JBL Battery 400 is the perfect companion to ensure uninterrupted music. Easy to install and environmentally friendly, it’s a must-have for music lovers and fans of extended celebrations.