---
product_id: 628533087
title: "JBL Battery 400 - an Easy-to-Replace Spare Battery That's Compatible with The JBL PartyBox Stage 320 and Xtreme 4 Portable Speaker (Speaker Sold Separately)"
brand: "jbl"
price: "€ 116.87"
currency: EUR
in_stock: true
reviews_count: 13
category: "Jbl"
url: https://www.desertcart.ie/products/628533087-jbl-battery-400-an-easy-to-replace-spare-battery-thats
store_origin: IE
region: Ireland
---

# 10min fast charge = +2h playtime Battery health monitored via app 18h playtime per battery JBL Battery 400 - an Easy-to-Replace Spare Battery That's Compatible with The JBL PartyBox Stage 320 and Xtreme 4 Portable Speaker (Speaker Sold Separately)

**Brand:** jbl
**Price:** € 116.87
**Availability:** ✅ In Stock

## Summary

> 🔋 Keep the party alive—because FOMO hates dead batteries!

## Quick Answers

- **What is this?** JBL Battery 400 - an Easy-to-Replace Spare Battery That's Compatible with The JBL PartyBox Stage 320 and Xtreme 4 Portable Speaker (Speaker Sold Separately) by jbl
- **How much does it cost?** € 116.87 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/628533087-jbl-battery-400-an-easy-to-replace-spare-battery-thats)

## Best For

- jbl enthusiasts

## Why This Product

- Trusted jbl brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fast Charge, Fast Fun:** Get an extra 2 hours of non-stop music with just a 10-minute quick charge.
- • **Eco-Friendly Packaging:** Packaged sustainably with FSC-certified materials and soy-based ink for conscious consumers.
- • **Seamless Compatibility:** Designed exclusively for JBL PartyBox Stage 320 and Xtreme 4 for guaranteed performance.
- • **Double Your Party Power:** Swap batteries in seconds to extend your JBL PartyBox Stage 320 or Xtreme 4 playtime up to 36 hours.
- • **Smart Battery Monitoring:** Use the JBL PartyBox app to track battery health and know exactly when it’s time to replace.

## Overview

The JBL Battery 400 is a rechargeable lithium-ion spare battery compatible exclusively with JBL PartyBox Stage 320 and Xtreme 4 speakers. Offering up to 18 hours of playtime per charge and a rapid 10-minute fast charge for 2 extra hours, it enables seamless battery swaps to double your music experience. Monitor battery health easily via the JBL PartyBox app. Packaged sustainably, it’s the perfect power boost for extended, worry-free parties.

## Description

Even the best parties have to end sometime, but your JBL PartyBox Stage 320 can keep the vibe going twice as long by having a spare JBL Battery 400 on hand. 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. Each battery has enough power for up to 18 hours of playtime, which means you could keep the party going for up to 36 hours. 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 wireless Bluetooth™speaker when it starts to degrade.Each battery comes in FSC-certified packaging printed with soy ink.

Review: Jbl partybox stage 320 battery - Good Backup battery for JBL Partybox 320
Review: quality - quality

## Features

- Compatible with JBL PartyBox Stage 320 and Xtreme 4: JBL Battery 400 is only compatible with the JBL PartyBox Stage 320 and JBL Xtreme 4 wireless Bluetooth speaker. Other JBL PartyBoxes and JBL portables have different battery requirements.
- Keep the party going twice as long by having a spare JBL Battery 400 on hand: Just swap out the battery in the back of your JBL PartyBox Stage 320. Each battery has up to 18 hours of playtime, which means you could keep the party going for up to 36 hours.
- 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.
- Fast charge: 10 minutes fast charge will give your JBL PartyBox Stage 320 and Xtreme 4 an extra 2 hours of playtime.
- Monitor playtime in the JBL PartyBox App Just use your JBL PartyBox app to check the health of your JBL PartyBox Stage 320’s current battery. When the Battery State of Health (SOH) reading lets you know it’s time, replacing the battery takes just seconds.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D15VM9BT |
| Batteries | 1 Lithium Ion batteries required. |
| Best Sellers Rank | #35,848 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #1,030 in Cell Phone Portable Power Banks |
| Customer Reviews | 4.8 4.8 out of 5 stars (95) |
| Date First Available | May 19, 2024 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 12.3 ounces |
| Item model number | JBLBATTERY400AM |
| Manufacturer | JBL |
| Product Dimensions | 3.66 x 3.5 x 1 inches |

## Product Details

- **Battery Capacity:** 9444
- **Battery Cell Composition:** Lithium Ion
- **Brand:** JBL
- **Number of Batteries:** 1 Lithium Ion batteries required.
- **Recommended Uses For Product:** JBL Partybox Stage 320, JBL Xtreme 4

## Images

![JBL Battery 400 - an Easy-to-Replace Spare Battery That's Compatible with The JBL PartyBox Stage 320 and Xtreme 4 Portable Speaker (Speaker Sold Separately) - Image 1](https://m.media-amazon.com/images/I/51uXiQC6CdL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Jbl partybox stage 320 battery
*by J***S on January 9, 2025*

Good Backup battery for JBL Partybox 320

### ⭐⭐⭐⭐⭐ quality
*by B***. on February 7, 2026*

quality

### ⭐⭐⭐⭐⭐ Great battery oem
*by A***R on September 14, 2024*

It's a battery oem good one just extra one for my jbl 320 stage

## Frequently Bought Together

- JBL Battery 400 - an Easy-to-Replace Spare Battery That's Compatible with The JBL PartyBox Stage 320 and Xtreme 4 Portable Speaker (Speaker Sold Separately)
- JBL PartyBox Stage 320 - Portable Party Speaker with Telescopic Handle & Wide, Sturdy Wheels, Powerful JBL Pro Sound, Futuristic lightshow, Up to 18 Hours of Play time, Splash Proof (Black)
- JBL PartyBox Wireless Mic - 2X Digital Wireless Microphones, Rechargeable Battery (20hrs - 700mAh), Clear Voice, Crisp Sound, Stable 2.4GHz Connection, Compatible with All PartyBox Speakers (Black)

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---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-23*