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Replacement battery for Sony MDR-RF860, MDR-RF4000, MDR-RF970, MDR-RF970RK, MDR-RF925, MDR-RF925RK, MDR-RF4000K, MDR-RF860RK, MDR-RF850, MDR-RF850RK, MDR-RF840, MDR-RF840RK, MDR-RF810, MDR-RF810RK

3.9 out of 5 stars 19 customer reviews

Price: £9.65 FREE UK delivery.
In stock.
Dispatched from and sold by UK Battery.
6 new from £6.71
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  • Composition: NiMH
  • Voltage: 2.4 V
  • Capacity: 700 mAh
  • Capacity: 1.7 Wh

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Product details

  • Product Dimensions: 4.3 x 3.6 x 0.7 cm ; 23 g
  • Boxed-product Weight: 23 g
  • Item model number: CS-TM2435SL
  • ASIN: B002MPV2XU
  • Date first available at Amazon.co.uk: 24 Aug. 2009
  • Average Customer Review: 3.9 out of 5 stars  See all reviews (19 customer reviews)
  • Amazon Bestsellers Rank:

Product description

Battery compatible with:

  • Sony: MDR-RF4000, MDR-RF4000K, MDR-RF810, MDR-RF810RK, MDR-RF840, MDR-RF840RK, MDR-RF850, MDR-RF850RK, MDR-RF860, MDR-RF860RK, MDR-RF925, MDR-RF925RK, MDR-RF970, MDR-RF970RK.
The Part Number associated are:
  • Sony: BP-HP550-11.


Customer Questions & Answers

Customer Reviews

3.9 out of 5 stars
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Top Customer Reviews

Verified Purchase
A few years ago I was bought a set of expensive Sony Wireless Headphones specifically for gaming which gave full surround sound response. After a few years the rechargeable batteries began to lose the ability to hold their charge as they do and annoyingly were only lasting minutes. I attempted to source a replacement set from Sony but they were asking in excess of £50! More than a similar completely new set of Headphones! I loath merely throwing out and replacing essentially serviceable equipment which can have its life extended by a minor and simple repair or part replacement. This batery has fitted the need at a fraction of the cost and with a higher mah rating than the original should give longer use per charge.
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Verified Purchase
I'm rather deaf, so Wireless Headphones make a big difference to listening & viewing. Rechargeable batteries eventually give out so these were a welcome find at a very reasonable cost.
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Verified Purchase
do not charge or work in my RF 4000 headphones so regret ordering two battery packs would be good if i could get a refund
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Verified Purchase
bought this battery for Sony MDR-RF 850r as advertised on EBAY, did not fit, had to break open to go into headphones
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Verified Purchase
Great value, and considerably more reasonable than the manufacturers original replacement. Buy it!
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Verified Purchase
It still did notfitbut don't worry I have decided to keep it
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Verified Purchase
I think wrong unit ordered. Should be for MDR-RF 810R.
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Verified Purchase
as described prompt delivery will shop again.
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