Compact 7.4v 10400mAh Lithium Battery Replacement for JBL Boombox 3 Portable Loudspeaker

Specifications

	Brand Name:	Softchip
	Place of Origin:	Guangdong, China
	Model Number:	ID109GA
	Size:	21.8*73.6*133mm
	Volt:	7.4V
	Capacity:	10400mAh
	Usage:	For JBL Boombox 3 bluetooth speaker
	Certificate:	Ce Rosh EMC
	Warranty:	12 months
	OEM/ODM:	Acceptable

Product Overview

As the flagship portable loudspeaker of JBL, the Boombox 3 is beloved by outdoor enthusiasts for its powerful sound and rugged design—but one common frustration persists: original or generic replacement batteries often force a trade-off between capacity and portability.

Bulky high-capacity batteries ruin the speaker’s "grab-and-go" convenience, while compact alternatives fail to deliver the all-day runtime needed for camping trips, long hikes, or extended gatherings.

Our Compact 7.4V 10400mAh Lithium Battery Replacement is engineered to break this trade-off, leveraging advanced high-energy-density technology to pack 10400mAh of true capacity into a ultra-slim, lightweight form that’s 1:1 precision-molded for JBL Boombox 3—no bulk, no compromise, just uncompromised power in a space-saving design.

Application

I.The Ultimate Outdoor Sound Companion

•Beach Parties & Poolside Gatherings: Provide the soundtrack to summer with relentless, powerful bass that lasts all day.

•Park Picnics & Tailgating: Be the life of the party. No outlets needed for hours of continuous, high-volume music.

•Backyard BBQs & Camping Trips: Transform any outdoor space into a vibrant audio zone with untethered, booming sound.

II.Uninterrupted Music for Work & On-the-Go Lifestyles

•Job Sites & Workshops: Power through the workday with durable, all-day background music in garages, warehouses, or at construction sites.

•Food Trucks & Pop-Up Shops: Create an inviting atmosphere for customers without the hassle of finding a power source.

•Road Trips & RV Adventures: Ensure your travel playlist never stops, making every journey more enjoyable.

III.Seamless Home Audio & Reliable Backup Power

•Whole-House Wireless Audio: Move your Boombox 3 freely from the living room to the patio without chasing power cords.

•The Essential Spare Battery: Never let a dead battery cancel your plans. Keep a fully charged spare on hand for instant swapping and unlimited playtime.

Production Line

Workers Production

Quality Inspection Area

Product Package

Why Choose Us?

•Precision High-Voltage Engineering:

Unlike generic alternatives, our battery is specifically engineered to output a stable 7.4V. This is crucial for the Boombox 3 to maintain its advertised power output and sound pressure level (SPL). A lower voltage battery can lead to reduced maximum volume and audio compression.

•Guaranteed High-Capacity & Authenticity:

We use premium, high-density Li-ion cells from reputable manufacturers. Each battery is tested to deliver a true and reliable 10400mAh capacity, ensuring you get the extended playtime you pay for, with no inflated specifications.

•Robust, Multi-Level Safety Protection:

Safety is paramount with high-capacity batteries. Our custom PCM provides superior protection against over-voltage, over-current, over-temperature, and short circuits. This multi-failure protection ensures the safety of both your speaker and your surroundings.

•Rigorous Quality Control & Perfect Fit:

Every battery undergoes strict quality checks to ensure perfect physical dimensions and connector alignment for a hassle-free, drop-in replacement. No modifications are needed; it fits seamlessly into the battery compartment just like the original.

•Unmatched Customer Support & Warranty:

We are confident in the quality and performance of our products. Backed by a comprehensive warranty and a knowledgeable support team, we are here to ensure your complete satisfaction from purchase to installation and beyond.

Certification

FAQ

Q: Is this 10400mAh battery compatible with JBL Boombox 1 or 2?

A: No, this battery is specifically engineered for the JBL Boombox 3. It features a 7.4V voltage and the specific connector required for the Boombox 3 motherboard. Please verify your speaker model before purchasing, as the internal structures and battery plug types differ between versions.

Q: Will this 10400mAh battery restore the 24-hour playtime of my Boombox 3?

A: Yes! Our High Capacity 10400mAh (76.96Wh) Lithium battery meets the original factory specifications. It is designed to provide the same massive power needed for deep bass and high volume, restoring your speaker's long-lasting 24-hour playtime (depending on volume and audio settings).

Q: How difficult is it to replace the JBL Boombox 3 battery? Do I need a technician?

A: Replacing the battery in a Boombox 3 is a moderate DIY task. It requires removing the outer handle, mesh, and unscrewing the battery compartment. No soldering is required as it is a plug-and-play design. We recommend following a professional "JBL Boombox 3 Teardown" video guide for a smooth installation.

Q: Is it safe to use this high-capacity replacement battery? Does it have a protection board?

A: Absolutely. Our JBL Boombox 3 replacement battery includes an advanced integrated Battery Management System (BMS). This provides multi-layer protection against over-charging, over-discharging, short circuits, and overheating, ensuring the safety of both the battery and your high-end speaker.

Q: Will this battery support the original fast charging feature of the Boombox 3?

A: Yes. This battery is fully compatible with the original JBL Boombox 3 internal charging circuit. It supports the original charging speed and voltage, allowing you to charge the speaker using your standard AC power cable without any issues.