# 2 Pack - Replacement for Sony MDR-RF925RK Battery - Compatible with Sony BP-HP550-11 Headphone Battery (700mAh 2.4V NI-MH) — resale value

Source: JunkPal price guide — https://junkpal.ai/products/2-pack-replacement-for-sony-mdr-rf925rk-battery-compatible-with-sony-b-b00f5d5gpg

**2 Pack - Replacement for Sony MDR-RF925RK Battery - Compatible with Sony BP-HP550-11 Headphone Battery (700mAh 2.4V NI-MH)** sells for about **$9.99** new or sealed, based on real closed eBay sales.

Live listings and the full sold-price history are on the page: https://junkpal.ai/products/2-pack-replacement-for-sony-mdr-rf925rk-battery-compatible-with-sony-b-b00f5d5gpg

## Value

| Condition | Value (USD) |
| --- | --- |
| New / Sealed | $9.99 |

Values are medians of real closed eBay sales, updated 2026-07-17. They are estimates for reference, not offers or appraisals — condition, completeness and edition move them a lot, so compare against the sold listings before pricing anything.

## Check the market

- [Sold listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DSony%2520MDR-RF925RK%2520battery%2520replacement%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-sold&p=md-sold) — the closed sales these medians are computed from
- [Live listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DSony%2520MDR-RF925RK%2520battery%2520replacement%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-live&p=md-live) — what sellers are asking right now

eBay links are affiliate links: JunkPal may earn a commission at no cost to you.

## Details

| Field | Value |
| --- | --- |
| Brand | Upstart Battery |
| Category | Home Audio & Theater |

## About

This is a 2 Pack of Upstart Battery replacement batteries, designed to be compatible with the Sony BP-HP550-11 Headphone Battery. It features a 700mAh 2.4V NI-MH specification.

These batteries are sought after by owners of Sony MDR-RF925RK headphones who require replacement power sources.

The resale value is driven by the battery's condition, its completeness as a 2-pack, and its specific compatibility with the Sony model.

## FAQ

**Are these batteries compatible with all Sony headphones?**

These batteries are specifically designed as a replacement for the Sony BP-HP550-11 Headphone Battery.

**What factors determine the resale value of these batteries?**

Resale value is determined by the battery's condition, its completeness as a 2-pack, and its specific edition.

**What is the voltage and capacity of this battery pack?**

The Upstart Battery pack features a 700mAh capacity and operates at 2.4V.

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Full price guide: https://junkpal.ai/products/2-pack-replacement-for-sony-mdr-rf925rk-battery-compatible-with-sony-b-b00f5d5gpg
How these values are computed: https://junkpal.ai/methodology
Cite as: "JunkPal price guide value as of 2026-07-17, based on real sold listings (junkpal.ai)"