Replacement Battery for Harmon Kardon ONYX MINI BATTERY speaker

Replacement for Harmon Kardon Onyx Mini speaker battery restores full power delivery and audio functionality in compatible systems. Engineered as a precise match to the original component, this battery installs directly without adapters or modifications, preserving the speaker's compact form factor and portable capabilities. Users regain consistent runtime during extended listening sessions at home, in the office, or while traveling, eliminating the need to keep the unit tethered to a charger. The internal chemistry supports repeated charge and discharge cycles while maintaining stable voltage output across varying volume levels and ambient temperatures. Installation requires only basic tools and a few minutes, returning the speaker to factory-like operation without affecting sound quality or Bluetooth connectivity.

Key Features & Benefits

• Direct replacement battery engineered for exact fitment in the specified Harmon Kardon model
• Delivers stable power interface matching original equipment performance requirements
• Supports standard charging behavior and full discharge capacity for everyday portable applications
• Enables continued wireless operation without altering speaker housing or electronics

Product Specifications

• Dimensions: 60mm x 40mm x 8mm
• Brand: Harmon Kardon
• Voltage: 3.7 V
• Chemistry: Lithium-ion
• Capacity: 2000 mAh

Replacement Compatibility

Compatible with Harmon Kardon Onyx Mini speaker models requiring battery replacement for continued operation. This part addresses common power loss issues while preserving all original functions and safety protections built into the speaker.

Discover the Perfect Replacement

Secure the battery component needed to return your speaker to working condition. Review fit details and place your order to receive the part promptly. Proper installation restores full mobility and audio performance, allowing uninterrupted enjoyment across all intended use cases. Customers report quick turnaround from order to delivery, with many units back in service the same week. The design avoids aftermarket compromises that could affect heat management or charging circuitry, ensuring long-term reliability comparable to the factory original. Whether the existing battery has reached end of life or no longer holds a charge, this solution provides an economical path forward without replacing the entire speaker assembly. Further details highlight the importance of matching voltage and connector type to prevent operational errors. Users who follow basic safety steps during install experience seamless results and extended playtime. Overall this battery serves as a practical maintenance item for owners who value sustained portable audio without unnecessary waste or expense.

During the checkout process, you can choose from expedited services such as overnight delivery to standard ground shipping. We aim to ensure your order is delivered promptly and reliably, wherever you are.

All returns must be made within 30 days of purchase with the invoice. (After 30 days, Interlight credit only, Minimum 25% restocking fee, no returns after 60 days, special items order just for you are not returnable.)

At Interlight, your satisfaction is our priority. We offer a 30-day money-back guarantee on eligible products, provided they are returned in resalable condition with the original invoice.