Price History for Kastar 1-Pack BP-HP550-11 2.4V 1000mAh Ni-MH Battery Replacement for Sony MDR-RF840RK MDRRF840RK MDR-RF840RJ MDRRF840RJ MDR-RF850 MDRRF850 MDR-RF850RK MDRRF850RK MDR-RF860 MDRRF860 Headphone

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Kastar 1-Pack BP-HP550-11 2.4V 1000mAh Ni-MH Battery Replacement for Sony MDR-RF840RK MDRRF840RK MDR-RF840RJ MDRRF840RJ MDR-RF850 MDRRF850 MDR-RF850RK MDRRF850RK MDR-RF860 MDRRF860 Headphone

Warm Reminder: Can use Ctrl + F easily to find your models 1. Compatible with the following Sony battery models: Sony BP-HP550-1 BPHP5501 Sony BP-HP550-11 BPHP55011 2. Compatible with the following Sony hea

ItemId: 927483156
UPC: 697067264065
$6.99
Last Updated
05-Aug-26 06:36 AM
In Stock
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Price History Chart

Lowest
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Highest
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Current
$6.99
View at Walmart

Recorded price history

DatePrice
Jan 24, 2026 $6.99
Jan 16, 2026 $6.99
Dec 29, 2025 $6.99
Dec 10, 2025 $6.99

Analysis

Kastar 1-Pack BP-HP550-11 2.4V 1000mAh Ni-MH Battery Replacement for Sony MDR-RF840RK MDRRF840RK MDR-RF840RJ MDRRF840RJ MDR-RF850 MDRRF850 MDR-RF850RK MDRRF850RK MDR-RF860 MDRRF860 Headphone price analysis

Price analysis for Kastar 1-Pack BP-HP550-11 2.4V 1000mAh Ni-MH Battery Replacement for Sony MDR-RF840RK MDRRF840RK MDR-RF840RJ MDRRF840RJ MDR-RF850 MDRRF850 MDR-RF850RK MDRRF850RK MDR-RF860 MDRRF860 Headphone at Walmart: Today's price is $6.99. That's 50% off the MSRP of $13.99. The lowest recorded price on PriceWatchPro was $6.99 on December 10, 2025. The current listing is at this all-time low.

  • The current price of $6.99 is 50% (or $7.00) below the MSRP of $13.99.
  • The lowest recorded price on PriceWatchPro was $6.99 on December 10, 2025. The current listing is at this all-time low.
  • The highest recorded price on PriceWatchPro was $6.99 on December 10, 2025.
  • No meaningful price drops recorded in the tracked history — this listing has held steady or trended upward.
  • PriceWatchPro has been tracking this listing since December 10, 2025 (239 days of price history).

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Snapshot

Kastar 1-Pack BP-HP550-11 2.4V 1000mAh Ni-MH Battery Replacement for Sony MDR-RF840RK MDRRF840RK MDR-RF840RJ MDRRF840RJ MDR-RF850 MDRRF850 MDR-RF850RK MDRRF850RK MDR-RF860 MDRRF860 Headphone shopping snapshot

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