JBL Battery 400 — Spare Battery for PartyBox Stage 320 & Xtreme 4 (18h)

Never let a dead battery cut your performance short with the JBL Battery 400 spare battery — the official JBL replacement battery engineered specifically for the PartyBox Stage 320 and Xtreme 4, delivering up to 18 hours of uninterrupted playtime so the music never stops.

Why the JBL Battery 400? Whether you're performing live, hosting an outdoor event, or on the road, the JBL Battery 400 spare battery gives you the confidence of a full charge ready to go whenever you need it. Swap batteries seamlessly and keep your JBL speaker running at full power — all day and all night.

Key Features:

• Official JBL spare battery for guaranteed compatibility & performance
• Up to 18 hours of playtime for extended all-day use
• Compatible with JBL PartyBox Stage 320 & Xtreme 4
• Quick & easy battery swap — no tools required
• Reliable JBL-grade build quality for long-lasting performance
• Lightweight & compact for easy transport & storage
• Ideal for live performances, outdoor events, travel & backup power
• Genuine JBL accessory for safe, reliable charging & power delivery

Perfect For: Musicians, performers, event hosts, and JBL speaker owners looking for a genuine JBL Battery 400 spare battery to extend their PartyBox Stage 320 or Xtreme 4 playtime for live performances, outdoor events, and extended listening sessions.

Available now in Kenya — fast delivery across Nairobi, Mombasa, Kisumu, and beyond.