Original branded batteries SONY BP-HP550-11, BPHP55011.
This is a new original Sony battery with higher capacity!
Operating time of the old 550mAh battery = 18 hours.
Operating time of the new 800mAh battery = 26 hours (2x13 hours)
For headset models: MDR-IF245RK, 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,MDR-RF811RK, MDRIF245RK, MDRRF4000, MDRRF4000K, MDRRF810, MDRRF810RK, MDRRF840, MDRRF840RK, MDRRF850, MDRRF850RK, MDRRF860, MDRRF860RK,MDRRF925, MDRRF925RK, MDRRF970, MDRRF970RK, MDRRF811RK
Specifications:
- Type: 2 micro AA
- Voltage: 2.4V
- Capacity: 500mAh
They have been replaced with original compatible batteries SONY BP-HP800 (shown on the left).
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