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

Specifications

Company Profile

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.

Workers Production

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: 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.