Wholesale Price 7.4v 10000mAh Lithium Battery Replacement for JBL Partybox300 Bluetooth Speaker

Specifications

	Brand Name	Softchip
	Place of Origin	Guangdong, China
	Model Number	Sun-inte-125
	Size	104.9*106.3*46mm
	Volt	7.4V
	Capacity	10000mAh
	Usage	For JBL Partyboxt 300 Bluetooth Speaker
	Certificate	Ce Rosh EMC
	Warranty	12 months
	OEM/ODM	Acceptable

Product Overview

Is your JBL PartyBox 300 losing charge too quickly? Reclaim full mobility and extended playtime with our premium 7.4V 10000mAh high-capacity lithium-ion battery replacement, meticulously designed as a direct upgrade for the JBL PartyBox 300 Bluetooth speaker system.

Built with top-tier A-grade cells and advanced safety architecture, this drop-in replacement seamlessly integrates into your existing unit—no modifications required—delivering significantly longer runtime for uninterrupted music wherever life takes you.

Precisely engineered to match OEM electrical specifications, this battery operates at a stable 7.4V nominal voltage with an impressive 10000mAh capacity—offering up to 50% more endurance than degraded original batteries. Whether you're hosting backyard barbecues, organizing outdoor weddings, or performing at pop-up events, this powerful pack ensures reliable performance when AC power isn't available.

Equipped with an intelligent Battery Management System (BMS), it actively protects against overcharging, deep discharge, short circuits, over-current, and thermal runaway.

The robust housing is made from flame-retardant ABS+PC composite material, providing excellent impact resistance and heat dissipation. Each unit undergoes rigorous aging tests, capacity verification, and quality control checks before shipment, guaranteeing consistent reliability and long-term durability.

Application

•Outdoor Adventures: Camping trips, beach parties, road trips, hiking excursions—keep the beats going without needing access to wall outlets.

•Home & Family Events: Birthday celebrations, holiday dinners, kids’ parties—elevate the atmosphere with seamless background music via Bluetooth streaming.

•Weddings & Photography Shoots: Serve as a dependable power source for ambient audio during ceremonies, receptions, or photo sessions, running smoothly for hours on end.

•Street Performances & Pop-Up Markets: Ideal for buskers, café musicians, and vendors who need portable, long-lasting audio support in dynamic settings.

•Emergency Backup Power: With proper adapters, can temporarily power small USB devices or LED lights during outages—adding functional versatility beyond speakers.

Production Line

Workers Production

Quality Inspection Area

Product Package

Why Choose Us?

• Perfect Fit, Direct Replacement

Our engineering team conducted extensive reverse analysis of the JBL PartyBox 300’s internal layout and connector configuration. This ensures exact dimensional alignment, pin compatibility, and voltage consistency—so you get a true plug-and-play experience every time.

•Premium Cells for Long-Term Reliability

We source only certified, name-brand lithium-ion cells that meet UN38.3, IEC62133, and MSDS standards. With over 500 charge-discharge cycles and less than 20% capacity loss after three years, our battery delivers lasting value.

•Advanced Safety Protections Built-In

Featuring a multi-layer protection BMS board that continuously monitors voltage, current, temperature, and load conditions. Automatically disconnects under fault scenarios to prevent overheating, fire hazards, or damage to your speaker.

•Expert Support & Hassle-Free Warranty

Access step-by-step installation guides, instructional videos, and responsive customer service whenever you need help. Backed by a 12-month warranty and 30-day return policy—we stand behind every product we ship.

Certification

FAQ

Q1: How much extra playtime will I get with a 10000mAh battery for my JBL Partybox 300?

A1: This 10000mAh ultra-high capacity lithium battery is designed to provide double the energy of many standard cells. Depending on your volume and light settings, this upgrade ensures your JBL Partybox 300 can power through the longest events without needing an AC outlet, making it the ultimate extended-life battery replacement.

Q2: Is this 7.4V 10000mAh battery compatible with the JBL Partybox 200?

A2: No. While they look similar, the JBL Partybox 200 does not have an internal battery and runs strictly on AC/DC power. This 7.4V rechargeable battery pack is specifically engineered for the JBL Partybox 300 internal battery compartment and charging system.

Q3: Can I buy these JBL Partybox 300 batteries at wholesale prices for repair shops?

A3: Yes, we offer wholesale pricing for 10000mAh replacement batteries for bulk orders. This is an ideal solution for audio repair businesses and distributors looking for high-quality, long-lasting JBL speaker parts that meet international safety standards (CE/RoHS/UN38.3).

Q4: Will the 10000mAh capacity affect the charging time of the speaker?

A4: Because this is a high-capacity upgrade, a full charge from 0% to 100% may take slightly longer than the original battery. However, it is fully compatible with the original JBL Partybox 300 charging circuit, and the built-in BMS (Battery Management System) ensures the charging process remains safe and efficient.

Q5: How do I install the 7.4V replacement battery in a Partybox 300?

A5: The JBL Partybox 300 battery replacement is a simple process involving removing the back panel screws. Our battery comes with the specific plug-and-play wiring harness, meaning no professional soldering is required. It is the most effective way to fix a JBL speaker that won't hold a charge.