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

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!