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Rectangular black lithium-ion battery, 69 by 20 millimetres, for Harman Kardon Onyx Studio 3

Cameron & Co

Cameron & Co DS-CS-HKE300XL Li-ion Battery 3.2 Ah Black

SKU CH-0A07-PRCBB

Replacement lithium-ion battery for the Harman/Kardon Onyx Studio 3 speaker, delivering 3.2 Ah at 3.7 V

  • Compatible with Harman/Kardon Onyx Studio 3 speaker
  • 2 Ah lithium-ion capacity for extended playback
  • 7 V 3200 mAh rating delivers 11.84 Wh energy
  • Compact 69.26 × 20.40 × 20.40 mm form factor
  • Brand-new 100 % OEM-compatible replacement battery

Replacement Battery for Onyx Studio 3

The Cameron & Co DS-CS-HKE300XL is a lithium-ion cell built to fit the Harman/Kardon Onyx Studio 3 speaker. It delivers 3.2 Ah at 3.7 V for 11.84 Wh of capacity. Owners of a depleted original pack can restore portable playback without modifying the enclosure.

Direct Fit with OEM Compatibility

The unit matches part number PR-633496 and measures 69.26 x 20.40 x 20.40 mm, so it slides into the factory battery bay. No adapter cables, soldering or firmware updates are required. The black finish matches the speaker's original aesthetics.

Simple Swap, Watch Polarity

Installation consists of opening the battery compartment, disconnecting the old pack and connecting the new one. The main risk is reversing the connector polarity, which can damage the speaker's charging circuit. Align the keyed plug carefully before applying pressure.

How it compares

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Price $14.99
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Specifications

Product
Brand nameCameron Sino
Model nameDS-CS-HKE300XL

Questions about this item

How many charge cycles until the 3.2 Ah battery needs replacing?

The 3200 mAh lithium-ion pack is rated for about 300 full cycles before capacity drops noticeably.

What stops a full-day session first — heat or voltage drop?

The 3.7 V cell maintains voltage until near empty; heat from the speaker driver usually limits run-time before the battery does.

Does the 11.84 Wh pack get hot or noisy during all-day playback?

No fan or moving parts inside the battery; it stays silent and only warms slightly under continuous load.

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