JBL Audio Battery 400 – Swaps Out in Seconds with Charging Case, Keeps PartyBox Going Twice as Long
JBL Battery 400 for PartyBox Stage 320 and Xtreme 4, Black
Overall Rating: 4.9 / 5 (average from multiple review sources, as of 3 Mar 2026)
Based on a total of 129,388 customer reviews from independent review platforms.
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The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
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pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 129,388 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Cheapest Total Price
3-5 Working Days
PayPal
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£79.00
Free Delivery
JBL Battery 400 with charging case swaps out in seconds, so your JBL PartyBox speaker can keep the party going twice as long
In stock
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£89.70
Free Delivery
JBL Battery 400 with Charging Case Black
Overall Rating: 2.0 / 5 (average from multiple review sources, as of 24 Feb 2026)
Based on a total of 48 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 48 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
2 - 4 business days
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£89.99
Free Delivery
JBL Battery 400 with charging case swaps out in seconds, so your JBL PartyBox speaker can keep the party going twice as long
Overall Rating: 2.4 / 5 (average from multiple review sources, as of 23 Feb 2026)
Based on a total of 46,432 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 46,432 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
In stock. Express Delivery available with Amazon Prime.
Direct debit
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£89.99
Free Delivery
JBL Battery 400 with Charging Case Dock Spare Replacement Battery for Partybox
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 22 Feb 2026)
Based on a total of 22,153 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 22,153 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Will usually delivered within 1 - 2 working days of receiving cleared payment.
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£89.99
GBP 89.99 / Unit
Free Delivery
JBL Battery 400 with charging case swaps out in seconds, so your JBL PartyBox speaker can keep the party going twice as long
In stock
Direct debit
Direct debit
Visa
Visa
Mastercard
Mastercard
£94.00
Free Delivery
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JBL Battery 400 for PartyBox Stage 320 and Xtreme 4, Black - Details
▶ Finding you the best price!
We have found 6 prices for JBL Battery 400 for PartyBox Stage 320 and Xtreme 4, Black. Our price list is completely transparent with the cheapest listed first. Additional delivery costs may apply.
JBL Battery 400 for PartyBox Stage 320 and Xtreme 4, Black - Price Information
- Cheapest price: £79.00
- The cheapest price is offered by richersounds.com. You can order the product there.
- The price range for the product JBL Battery 400 for PartyBox Stage 320 and Xtreme 4, Black is €£79.00to €£94.00 with a total of 6 offers.
- Payment methods: The online shop richersounds.com supports: PayPal, Visa, Mastercard
- Delivery: The shortest delivery time is 3-5 Working Days working days offered by richersounds.com.
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£176.19
GBP 176.19 / Unit
ebay.co.uk
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Cheapest offer
Made exclusively for the PartyBox Stage 320 and Xtreme 4, the JBL Battery 400 gives you twice the running time. Double your playback timeThe JBL Battery 400 makes your PartyBox Stage 320 or Xtreme 4 speaker even longer-lasting. With a regular battery life of 18 hours, once the supplied battery is exhausted, simply slot in the Battery 400 and keep the party going for a total of 36 hours. Fast charge capabilityWith fast charging capability, the Battery 400 can deliver up to two hours playback time from a quick 10-minute charge. Monitor playtime in the JBL PartyBox appDownload the JBL PartyBox app and you’ll be able to track your battery’s health. When the Battery SOH (State of Health) status alerts you, simply slot in the new battery within seconds. Party for longer, with the JBL Battery 400. | JBL Battery 400 for PartyBox Stage 320 and Xtreme 4, Black
£79.00
3-5 Working Days
richersounds.com
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