Skip to product information
1 of 8

JBL PartyBox 720 Battery Replacement 5000mAh OEM - Also Fits PartyBox 520 and JBL Boombox 4 Speaker

JBL PartyBox 720 Battery Replacement 5000mAh OEM - Also Fits PartyBox 520 and JBL Boombox 4 Speaker

Warranty: 1 year warranty!
Regular price $89.99
Regular price $259.00 Sale price $89.99
Sale Sold out
Shipping calculated at checkout.
Quantity
View full details visa master paypal america express gpay applepay
Description
Compatibility
FAQ

Restore Your Music Marathon: New OEM 5000mAh Replacement Battery for JBL PartyBox & Boombox

Does your JBL speaker shut down before the party peaks? Bring the energy back to life and reclaim untethered, powerful sound with this New OEM 5000mAh Replacement Battery. Engineered as a direct-fit, high-capacity power source, this battery is designed to deliver the extended playtime and reliable voltage your JBL speaker needs to fuel hours of music, light shows, and powerful bass.

Has your JBL PartyBox 520, 720, or Boombox 4 Bluetooth speaker lost its ability to power the party on the go? When your speaker's runtime shrinks to just a few hours, the solution isn't a new speaker—it’s a new heart. This New OEM 5000mAh Replacement Battery is engineered to the exact specifications of your JBL portable speaker. As an Original Equipment Manufacturer (OEM) part, it delivers the same reliable power, voltage, and safety features as the battery your speaker came with. Enjoy uninterrupted music for hours on end, just like when your speaker was new. A simple replacement process can transform your speaker from a stationary device back into the powerful, portable sound machine it was meant to be.

Product Highlights & Technical Specifications:

  •  High-Capacity & Long-Lasting Power: Features a robust 5000mAh (108Wh) capacity with a 21.6V nominal voltage, providing the substantial energy reserve required for extended playback on your powerful speaker. Experience more hours of music between charges.

  •  Guaranteed OEM Compatibility: This is a direct OEM-grade replacement engineered for seamless compatibility with JBL PartyBox 520, PartyBox 720, and Boombox 4 Bluetooth speakers. It ensures a perfect physical fit and correct electrical interface for safe, optimal performance.

  • Premium Cell Quality & Safety: Built with high-grade, tested lithium-ion cells and features a built-in Protection Circuit Module (PCM). This safeguards against overcharging, over-discharging, short circuits, and overheating, ensuring maximum safety for your speaker and your environment.

  •  Restore Full Portability & Value: A fraction of the cost of a new speaker, this battery is the most economical and eco-friendly solution to restore your JBL's defining feature: powerful, cord-free sound. Get back to taking the party anywhere.

  •  Plug-and-Play Installation: Designed for a hassle-free, do-it-yourself replacement in minutes (following proper safety guidelines). No special tools required—just carefully swap the old pack for the new one.

Product Description

Item Condition: Brand NEW

Voltage: 21.6V

Capacity:5000mAh /108Wh

Battery Type:  Lithium ion Battery

Warranty: 1 Year

Model:Partybox 520 

 Compatible with: 

    For  JBL Speaker

Why This OEM-Spec Battery is the Smart Choice for Your JBL:

A weak battery cripples your speaker's portability and can cause sudden power loss. Generic, low-quality batteries risk damage and poor performance.

Choosing our 5000mAh 21.6V OEM Replacement Battery ensures:

  • Extended Playback: Supports the high-power output needed for the speaker's drivers, bass boost, and LED light shows for longer durations.

  • Reliable Performance & Safety: Stable voltage delivery and multiple electronic protections keep your speaker running safely and consistently.

  • Perfect Integration: The correct form factor and connector ensure a secure fit and reliable power transmission, just like the original.

  • Uninterrupted Entertainment: Revive the true wireless experience your JBL speaker was built for, without being tied to an outlet.

Compatibility: Specifically designed for JBL PartyBox 520, JBL PartyBox 720, and JBL Boombox 4 Bluetooth speakers.

(Important Installation Note: Ensure the speaker is powered OFF and unplugged before replacing the battery. For optimal results, fully charge the new battery before first use. If unsure about the replacement process, consult a professional.)

Don't let a dead battery silence your party. Power up with confidence and durability. Order your New OEM 5000mAh JBL Speaker Battery today and keep the music playing louder and longer!

Disclaimer:
All batteries sold on laptopbatteriesadapters.com are replacement parts. laptopbatteriesadapters.com doesn't affiliate with any of the original manufacturers. Any registered trademarks or model names listed above are identified as purposes of showing compatibility only.

Q: Is this 5000mAh battery truly an OEM part and will it provide the same runtime as the original in my JBL Boombox 4?

A: Yes and yes.This is an OEM (Original Equipment Manufacturer) battery, meaning it is produced to the same technical specifications, quality standards, and form factor as the original battery that came with your JBL Boombox 4, PartyBox 520, or PartyBox 720. With its 5000mAh capacity, it is designed to deliver theexact same performance and runtimeas the factory-installed battery when new. It ensures perfect compatibility, safe operation within the speaker's power management system, and restores the full, long-lasting portable experience you expect from your JBL speaker.

Q1: Is this OEM 5000mAh battery guaranteed compatible with my JBL PartyBox 520 or Boombox 4?
Yes, with exact engineering specifications. This OEM replacement battery is designed as a direct internal power source for:

  • JBL PartyBox 520 Portable Party Speaker
  • JBL PartyBox 720 Portable Party Speaker
  • JBL Boombox 4 Bluetooth Speaker
    It guarantees perfect electrical compatibilitysecure physical fit, and seamless performance with your speaker's power management system.

Q2: How does the high-capacity 5000mAh (7.4V) battery extend my speaker's playtime and performance?
This premium 5000mAh lithium-ion battery delivers the substantial power reserve required for extended audio enjoyment:

Extended music playback for hours of continuous, uninterrupted sound at various volume levels.

Stable 7.4V voltage output ensures consistent amplifier performance and maintains optimal audio clarity, especially at high volumes.