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Rectangular replacement battery pack with black plastic casing and metal contacts

Cameron Sino Replacement Battery for Sony MDR Headphones

SKU CH-0NKC-GWQZ9

Replacement battery compatible with numerous Sony MDR wireless headphone models

  • Compatible with Sony MDR-DS, IF, RF series
  • Reliable power for extended wireless listening
  • Restores headphone performance with precise fit
  • Durable construction for long-term daily use
  • Direct replacement for BF-TDSY and MDR models

Compatible Sony MDR Headphone Models

This replacement battery fits a wide range of Sony wireless headphones including the MDR-DS3000, MDR-DS4000, MDR-IF140, MDR-IF240R, MDR-IF540R, MDR-RF800R, MDR-RF820, and MDR-RF850R series. It is designed for owners of these specific models who need to restore power to their existing headsets. Buyers with headphones outside this listed compatibility range will not be able to use this battery.

Reliable Power Delivery

The battery is engineered to provide stable power for uninterrupted audio playback during extended listening sessions. Its construction focuses on consistent performance so the headphones operate at their intended capability. No thermal, noise, or power-draw specifications are provided for this component.

Direct Hardware Replacement

This unit is a standalone replacement battery with no bundled accessories, cables, or software included. It changes the user experience by restoring the original wireless runtime of the compatible headphones. Installers who require mounting hardware or charging docks must source those separately.

Highlights

  • Compatible with Sony MDR-DS, IF, RF series
  • Reliable power for extended wireless listening
  • Restores headphone performance with precise fit
  • Durable construction for long-term daily use
  • Direct replacement for BF-TDSY and MDR models

Specifications

BrandCameron Sino
ModelBF-TDSY, MDR-DS3000, MDR-DS4000, MDR-IF140, MDR-IF140K, MDR-IF240R, MDR-IF240R?K, MDR-IF240RK, MDR-IF3000, MDR-IF540R, MDR-IF540RK, MDR-RF800R, MDR-RF800RK, MDR-RF820, MDR-RF820R, MDR-RF820R?K, MDR-RF850R, MDR-RF850R?K, MDR-RF885R, MDR-RF885RK, MDR-RF920RK, MDR-RF925RK, MDR-RF960R, MDR-RF960RK

Questions about this item

How do I install the battery in my MDR-RF850R headphones and which step is often missed?

Open the earcup battery compartment, disconnect the old pack, connect the new BF-TDSY battery observing the correct polarity, then close the cover securely; the step most often missed is ensuring the connector clicks fully into place.

What maintenance will the replacement battery need over its life?

No routine maintenance is required; store the headphones partially charged if unused for weeks, avoid deep discharge, and replace the pack once listening time drops noticeably.

What is the first limit you hit during a long listening session with the MDR-IF3000?

The battery's capacity determines maximum continuous play time; when the pack is depleted the headphones shut off until recharged.

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