Precision-Fit 11.1v 2500mAh Lithium Battery Replacement for Harman Kardon Onyx Bluetooth Speaker

Specifications

Company Profile

Product Overview

Restore your Harman Kardon Onyx​ to full performance with the Precision-Fit 11.1V 2500mAh Li-ion replacement battery. Engineered for drop-in compatibility, this pack delivers reliable power, stable voltage output, and the runtime you expect from a like-new speaker.

The high-quality cells and robust PCM protection help safeguard against overcharge, overdischarge, and short circuits, while the precision-matched form factor ensures a snug, tool-free fit. Ideal for daily music playback, outdoor gatherings, and travel use, this battery brings your speaker back to life with confidence and peace of mind.

Designed for drop-in use, the pack maintains consistent output to minimize audio distortion and dropouts during peaks, while the matched form factor and connector layout ensure a precise fit without the need for modification. Ideal for restoring original performance in aging batteries, it brings back reliable playtime and dependable startup in your Harman Kardon Onyx​ speaker.

Engineered for safety and durability, the battery is encased in flame-retardant materials and built to withstand typical portable-speaker stresses, with stable performance across a recommended operating range of 0–45°C​ for charging and –10–60°C​ for discharging.

The pack is supplied with clear polarity markings and a serviceable connector to simplify installation; always power off and disconnect the speaker before replacement, and follow the device’s service guide for safe handling.

Application Scenarios

I.Home & Portable Use

•Whole-House Audio: Move your music freely from the kitchen to the living room, balcony, or bath without being tethered to a wall outlet.

•Indoor/Outdoor Parties: Power your gatherings indoors or in the backyard. Enjoy continuous, high-quality sound from start to finish.

II.Outdoor & On-the-Go

•Picnics & Park Outings: Bring premium sound to your outdoor relaxation. The battery ensures your music lasts as long as your adventure.

•Travel & Camping: A perfect companion for road trips or campsites, providing lasting power for music anywhere you go.

III.Work & Business

•Mobile Office: Work from cafes or co-working spaces with uninterrupted background music, without competing for power sockets.

•Pop-up Shops & Studios: Create an inviting atmosphere in small retail spaces or studios with seamless, cord-free music.

IV.Special Moments

•Romantic Setups: Easily set the mood for a surprise dinner or a special evening anywhere in your home or garden.

Workers Production

Product Package

Why Choose Us?

•Perfect Fit Guarantee: We prioritize precise dimensional matching and connector alignment, so your battery fits like the original—no forced fit, no extra adapters.

•Verified Compatibility: Cross-checked with common Onyx battery references (PR-633496, CP-HK02) and real-world speaker models to minimize mismatch risks.

•Built-in Safety: Every pack includes a PCM for overcharge, overdischarge, overcurrent, and short-circuit protection, helping to extend service life and improve safety.

•Transparent Specs: Clear labeling of 11.1V​ and 2500mAh​ with no exaggerated claims—what you see is what you get.

•Quality You Can Trust: We focus on consistent cell matching and robust build quality, aiming for reliable performance you can count on.

•Easy Installation: User-friendly drop-in design with no soldering required; suitable for DIYers and professionals alike.

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.