---
product_id: 651370644
title: "JBL Battery 400 swaps out in seconds, so your PartyBox Stage 320/Xtreme 4 can keep the party going twice as long."
brand: "jbl"
price: "R4871"
currency: ZAR
in_stock: true
category: "Jbl"
url: https://www.desertcart.co.za/products/651370644-jbl-battery-400-swaps-out-in-seconds-so-your-partybox
store_origin: ZA
region: South Africa
---

# Fast swap in seconds App control compatible 18h playtime per battery JBL Battery 400 swaps out in seconds, so your PartyBox Stage 320/Xtreme 4 can keep the party going twice as long.

**Brand:** jbl
**Price:** R4871
**Availability:** ✅ In Stock

## Summary

> 🔋 Keep the beat alive—double your party power with JBL Battery 400!

## Quick Answers

- **What is this?** JBL Battery 400 swaps out in seconds, so your PartyBox Stage 320/Xtreme 4 can keep the party going twice as long. by jbl
- **How much does it cost?** R4871 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/651370644-jbl-battery-400-swaps-out-in-seconds-so-your-partybox)

## 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

- • **Official JBL Quality:** Durable, reliable, and backed by JBL’s trusted engineering for uninterrupted party vibes.
- • **Smart App Integration:** Control and monitor your battery status directly from the JBL PartyBox app for ultimate convenience.
- • **Eco-Friendly Packaging:** Packaged responsibly with FSC-certified materials and soy-based ink, because great parties deserve a greener footprint.
- • **Double Your Party Power:** Swap batteries in seconds to extend your JBL PartyBox Stage 320 or Xtreme 4 playtime up to 36 hours.
- • **Effortless Fast Charging:** Get back to the groove quickly with a battery designed for rapid recharge and seamless replacement.

## Overview

The JBL Battery 400 is a high-capacity, fast-swappable rechargeable battery compatible with JBL PartyBox Stage 320 and Xtreme 4 speakers. Delivering up to 18 hours of playtime per battery, it enables up to 36 hours of continuous music when used as a spare. Designed for durability and official JBL quality, it supports app control and comes in eco-conscious packaging, making it the ultimate power solution for extended parties and events.

## 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.

## Features

- A great host always has a spare battery
- Durable quality
- Fast charge
- Works with the JBL PartyBox app
- Compatible with JBL PartyBox Stage 320 and Xtreme 4

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D2J6SSQY |
| Antenna Location | For JBL PartyBox Stage 320 and Xtreme 4 speakers |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Battery Average Life | 36 hours |
| Battery Capacity | 9.44 amp_hours |
| Best Sellers Rank | 72,342 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 1,382 in Rechargeable Household Batteries |
| Box Contents | 1 x BATTERY400, 1 x Safety Instruction and Warranty Card, Quick Start Guide |
| Brand Name | JBL |
| Colour | Black |
| Compatible Devices | Smartphone, tablet, laptop, TV |
| Connectivity Protocol | Bluetooth |
| Control Method | App |
| Controller Type | App Control |
| Country of Origin | China |
| Customer Reviews | 4.8 4.8 out of 5 stars (188) |
| Enclosure Material | Metal |
| Frequency Response | 20 KHz |
| Input Voltage | 7.2 Volts |
| Is Waterproof | True |
| Item Dimensions D x W x H | 113D x 34W x 102H millimetres |
| Item Weight | 350 Grams |
| MP3 player | No |
| Manufacturer | JBL |
| Maximum Speaker Output Power (in watts) | 100 Watts |
| Model Name | JBL Battery 400 |
| Model Number | JBLBATTERY400 |
| Mounting Type | Tabletop |
| Network Connectivity Technology | Wired |
| Number of Audio Channels | 1.0 |
| Number of Batteries | 1 Lithium Ion batteries required. |
| Number of Items | 3 |
| Number of Power Levels | 1 |
| Power Source | Battery Powered |
| Product Features | An easy-to-replace spare battery |
| Product Warranty | 2 Years |
| Speaker Size | 113 Millimetres |
| Speaker Type | Battery |
| Specific Uses For Product | Party/Event Environments, Outdoor/Portable Audio Setups |
| Subwoofer Connectivity Technology | Wired |
| UPC | 050036402361 |
| Unit Count | 1.0 count |
| Warranty Type | Limited |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology Type | Bluetooth |

## Product Details

- **Audio output mode:** Stereo
- **Brand:** JBL
- **Connectivity technology:** Wired
- **Frequency response:** 20 KHz
- **Input voltage:** 7.2 Volts
- **Material:** Metal
- **Model name:** JBL Battery 400
- **Mounting type:** Tabletop
- **Speaker maximum output power:** 100 Watts
- **Speaker type:** Battery

## Images

![JBL Battery 400 swaps out in seconds, so your PartyBox Stage 320/Xtreme 4 can keep the party going twice as long. - Image 1](https://m.media-amazon.com/images/I/51uXiQC6CdL.jpg)

## Available Options

This product comes in different **Color** options.

## Frequently Bought Together

- JBL Battery 400 swaps out in seconds, so your PartyBox Stage 320/Xtreme 4 can keep the party going twice as long.
- JBL PartyBox Digital Wireless Microphones for JBL PartyBox Speakers with Wireless Dongle, Stable 2.4 GHz Connection and 20-Hour Playtime, Black

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**Shop now:** [https://www.desertcart.co.za/products/651370644-jbl-battery-400-swaps-out-in-seconds-so-your-partybox](https://www.desertcart.co.za/products/651370644-jbl-battery-400-swaps-out-in-seconds-so-your-partybox)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-10-15*