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WARNING: A new model of ORIGINAL OEM battery Sony HP850 is being supplied, as the HP550 is no longer available from Sony.
This battery has been professionally modified by us to fully replace the original HP550. The new battery has an increased capacity compared to the original HP550 (from 550 mAh to 800 mAh).
This NEW ORIGINAL BATTERY from Sony has been expertly modified in our electronics service to fit perfectly into your headphones in place of the original battery. Due to manual mechanical adjustments, there may be some scratches or signs of handling on the backside of the battery cover; however, the battery is new, fresh, and unused, supplied to us by Sony Czech Republic. It is still a new, never-used, never-charged original Sony battery.
For the headphone models: MDR-IF245RK, MDR-RF4000, MDR-RF4000K, MDR-RF810, MDR-RF810RK, MDR-RF840, MDR-RF840RK, MDR-RF850, MDR-RF850RK, MDR-RF855R, MDR-RF855RK, MDR-RF860, MDR-RF860RK, MDR-RF925, MDR-RF925RK, MDR-RF970, MDR-RF970RK, MDR-RF811RK, MDRIF245RK, MDRRF4000, MDRRF4000K, MDRRF810, MDRRF810RK, MDRRF840, MDRRF840RK, MDRRF850, MDRRF850RK, MDRRF860, MDRRF860RK, MDRRF925, MDRRF925RK, MDRRF970, MDRRF970RK, MDRRF811RK
Specifications:
- Type: 2 micro AAA
- Voltage: 2.4V
WARNING: A new model of ORIGINAL OEM battery Sony HP850 is being supplied, as the HP550 is no longer available from Sony.
This battery has been professionally modified by us to fully replace the original HP550. The new battery has an increased capacity compared to the original HP550 (from 550 mAh to 800 mAh).
This NEW ORIGINAL BATTERY from Sony has been expertly modified in our electronics service to fit perfectly into your headphones in place of the original battery. Due to manual mechanical adjustments, there may be some scratches or signs of handling on the backside of the battery cover; however, the battery is new, fresh, and unused, supplied to us by Sony Czech Republic. It is still a new, never-used, never-charged original Sony battery.
For the headphone models: MDR-IF245RK, MDR-RF4000, MDR-RF4000K, MDR-RF810, MDR-RF810RK, MDR-RF840, MDR-RF840RK, MDR-RF850, MDR-RF850RK, MDR-RF855R, MDR-RF855RK, MDR-RF860, MDR-RF860RK, MDR-RF925, MDR-RF925RK, MDR-RF970, MDR-RF970RK, MDR-RF811RK, MDRIF245RK, MDRRF4000, MDRRF4000K, MDRRF810, MDRRF810RK, MDRRF840, MDRRF840RK, MDRRF850, MDRRF850RK, MDRRF860, MDRRF860RK, MDRRF925, MDRRF925RK, MDRRF970, MDRRF970RK, MDRRF811RK
Specifications:
- Type: 2 micro AAA
- Voltage: 2.4V
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