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Rectangular lithium-ion battery pack, dark finish, compact size

Cameron Sino Battery for Sennheiser MB 660, PXC 550 650mAh 3.7V

SKU CH-6AJD-EKXBK

Replacement lithium-ion cell restores 650 mAh capacity to Sennheiser MB 660 and PXC 550 headsets

  • Battery pack size45.44 × 33.84 × 4.3
  • Battery capacity650 mAh
  • Battery voltage rating3.7 V
  • Details45.44 × 33.84 × 4.3
  • Replacement battery fits Sennheiser MB 660 and PXC 550 headsets
  • 650 mAh capacity delivers 2.41 Wh of energy at 3.7 V
  • Compact 45.44 x 33.84 x 4.30 mm size matches original dimensions
  • ISO9001, RoHS and CE certified for safety and quality
  • Fully decoded chip works like the original battery

Direct Replacement Battery

The Cameron Sino battery fits Sennheiser MB 660 and PXC 550 wireless headsets. It matches the original AHB413645PCT part number and delivers 650mAh at 3.7 volts. A fully decoded chip ensures the headset recognises the cell and reports capacity correctly.

For Owners of Compatible Headsets

This cell suits owners of the MB 660 or PXC 550 whose original battery no longer holds a charge. Buyers who cannot confirm their headset model or part number should look elsewhere, as the connector and dimensions are specific to those units.

Rated Capacity and Runtime

The 650mAh lithium-ion pack provides 2.41Wh of energy, matching the factory specification for typical daily use. After two or three full charge cycles the cell reaches its rated runtime; heavy users who need longer sessions between charges will find the fixed capacity a limiting factor.

How it compares

Measured against everything we stock in Wired & Wireless Headsets, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 94% of the 1,586 comparable items (median $60.99).

Specifications

Product
Brand nameCameron Sino
Model nameEPOS ADAPT 660, MB 660, PXC 550
Part number507271-88, AHB413645PCT
Power
Battery capacity650 mAh
Battery voltage rating3.7 V
In the box
Battery pack size45.44 × 33.84 × 4.3

Questions about this item

Which Sennheiser headset models accept this 650 mAh 3.7 V replacement cell?

It fits the MB 660 and PXC 550 wireless headsets and matches Sennheiser part number AHB413645PCT.

Will the original headset charging circuit recognise the new decoded chip?

Yes, the fully decoded chip works like the original so the headset charges and reports capacity normally.

How can I verify the battery is performing correctly after the first few charge cycles?

After 2 or 3 full charge and discharge cycles the headset should reach its normal runtime and show stable percentage readings.

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