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

Specifications

Company Profile

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.

Workers Production

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

Q1: Is Foshan Softchip Electronics Co., Ltd. an original factory?

A: Yes, Foshan Softchip  Electronics Co., Ltd. is an original factory. We directly engage in product manufacturing, eliminating intermediary links and enabling us to offer customers more cost-effective products.

Q2: How many years of production experience does your company have?

A: Our company has 13 years of production experience. Over the long-term practice, we have accumulated rich technical and management expertise, allowing us to efficiently and steadily produce high-quality products.

Q3: Does your company have complete production equipment?

A: Absolutely. We possess complete and advanced production equipment that covers all aspects from raw material processing to finished product assembly. This provides a solid hardware guarantee for the quality of our products.

Q4: What are the main products your company produces?

A: Our company mainly produces batteries for various models of JBL speakers and iPhone batteries. These products undergo strict quality inspections and have stable and reliable performance.

Q5: Is there a guarantee for product supply when cooperating with your company?

A: There is definitely a guarantee. As an original factory, we have strong production capacity and a stable supply chain system. We can arrange production in a timely manner according to customer needs to ensure on-time and sufficient supply.