Portable 3.6v 3250mAh Lithium Battery Replacement for Harman Kardon Onyx Studio7 Bluetooth Speaker

Specifications

Company Profile

Product Overview

This 3.6V 3250mAh portable lithium battery, with its excellent performance and portability, offers users of the speaker a brand - new experience. It serves as an ideal solution to problems such as short battery life and inconvenient replacement of the original battery.

In terms of performance parameters, the rated voltage of 3.6V provides a stable and appropriate power input for the speaker, ensuring its stable operation during playback. There will be no noise or playback interruptions caused by unstable voltage. The large - capacity design of 3250mAh is a major highlight.

Compared with the original factory battery, it has significantly improved endurance. Once fully charged, the speaker can play continuously for several hours. Whether it is for long - term music appreciation, intense video playback, or background music playback during outdoor activities, it can easily handle it without the need for frequent charging, greatly enhancing the convenience of use.

This battery is designed with portability and compatibility in mind. Its compact and lightweight design makes it easy for users to carry and replace. It is perfectly compatible with the Harman Kardon Onyx Studio7 Bluetooth speaker.

Moreover, the battery's outer shell is made of high - quality materials, which have good wear resistance and impact resistance, effectively protecting the internal battery structure and extending the battery's service life.

Application

•Indoor desktop & kitchen setups: Keep your Harman Kardon Onyx Studio 7​ powered through long sessions at your desk, kitchen counter, or living area without frequent recharging.

•Bedroom & small spaces: Compact and lightweight replacement supports nightstand listening and ambient playback at low to medium volumes.

•Small gatherings & patios: Maintain stable output during gatherings; consistent playback even when moving between rooms or outdoors.

•Temporary outdoor use: Pair with a power bank or car adapter for picnics, balconies, and camping trips where outlet access is limited.

•Wired backup connection: Use the 3.5mm AUX-IN​ when prioritizing connection stability over wireless, while still benefiting from battery power.

•Multi-room & wireless party chain: Maintain the speaker’s wireless multi-room capabilities for synchronized playback across rooms.

•Study & meditation: Long-form audio without interruption; stable voltage helps preserve soundstage and detail at low volumes.

Workers Production

Product Package

Competitive Advantages 

•Spec-matched for drop-in compatibility：Engineered to the Onyx Studio 7’s original battery spec (3.6V 3250mAh, approx. 11.7Wh​ nominal energy) to minimize adaptation work and ensure a straightforward replacement experience.

• Consistent power delivery, no capacity inflation：Cell and protection board tuned for stable voltage under dynamic loads, reducing voltage sag and unexpected shutdowns at higher volumes.

•Enhanced safety by design：Integrated protection against overcharge/over-discharge/over-current/short-circuit, with flame-retardant housing and secure connector layout for long-term home use.

•Tool-free quick swap：Follows the original battery bay layout and wiring orientation; most users can complete the replacement quickly with basic tools.

•Grade-A cell selection and batch consistency：Only new, high-quality cells with pre-shipment checks on capacity, internal resistance, and self-discharge for reliable, repeatable performance.

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.