£89.99

This is the most expensive it has ever been. Walk away.

£90 today · previous high £90 · all-time low £70

JBL Battery 400 with Charging Case, for PartyBox, Black

Amazon

Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 66 days · 66 data points (no recent data)

Historical
Generating forecast…
£89.99 £67.96 £72.76 £77.57 £82.38 £87.19 £91.99 11 August 2026 27 August 2026 12 September 2026 28 September 2026 15 October 2026
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Black, JBLBATT400CHRGCASE

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Price Distribution

Price distribution over 66 days • 2 price levels

Days at Price
Current Price
3 days 63 days · current 0 16 32 47 63 £70 £90 Days at Price

Price Analysis

Most common price: £90 (63 days, 95.5%)

Price range: £70 - £90

Price levels: 2 different prices over 66 days

Description

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)

Key Features

An easy-to-replace spare battery with charging case

An easy-to-replace spare battery with charging case that's compatible with the JBL PartyBox Stage 320, Xtreme 4 portable speaker and more.

JBL Battery 400 with charging case swaps out in seconds, so your JBL PartyBox Stage 320 can keep the party going twice as long. It also can replace the rechargeable battery inside a JBL Xtreme 4 portable speaker and more when it starts to degrade.

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)

Product Specifications

Brand
JBL
Colour
Black
Size
One Size
Pack Size
3 items
Domain
Amazon UK
Release Date
01 October 2025
Listed Since
01 October 2025

Barcode

No barcode data available

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