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Small black rectangular lithium-polymer battery pack, about fifty by twenty-six by six millimetres

Cameron & Co

Cameron & Co DS-CS-PHK300SL portable audio battery 3.7V 500mAh black

SKU CH-5217-PJTZ8

Li-Polymer replacement battery for Phonak inspiro transmitters, 3.7 V 500 mAh 1.85 Wh, 49.98 × 26.00 × 5.67 mm, black

  • Product typePortable Radio
  • Compatible with Phonak inspiro transmitters
  • Li-Polymer chemistry provides reliable portable power
  • 7 V 500 mAh capacity delivers 1.85 Wh energy
  • Compact 49.98 × 26.00 × 5.67 mm form factor
  • Black finish matches original equipment appearance

Cameron Sino DS-CS-PHK300SL battery

The Cameron Sino DS-CS-PHK300SL is a lithium-polymer replacement cell built for Phonak inspiro transmitters including the inspiro tx and Premium models. It delivers a nominal 3.7V and 500mAh capacity in a compact black housing. Professionals who rely on Roger audio systems for daily communication will find this pack restores original run-time.

Replaces worn original 3PINSBR packs

When the factory 3PINSBR battery no longer holds a full charge the DS-CS-PHK300SL restores the 1.85Wh rating without modification. The swap is worth it if your transmitter cuts out before a session ends or if charging cycles have become noticeably shorter. Users whose devices still meet daily runtime targets do not need this replacement.

Check connector and dimensions before ordering

Verify that your transmitter uses the three-pin 3PINSBR interface and that the battery compartment accepts a pack measuring 49.98 x 26.00 x 5.67 mm. The cell is supplied as a single unit without cables or tools. Confirm the voltage marking on your existing pack reads 3.7V to avoid mismatch.

How it compares

Measured against everything we stock in Earbuds, Earphones & Mini Speakers, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 93% of the 231 comparable items (median $40.99).

Specifications

Product
Brand nameCameron Sino
Model nameDS-CS-PHK300SL
Product typePortable Radio

Questions about this item

What are the exact dimensions of the DS-CS-PHK300SL so I can confirm it fits my Phonak inspiro transmitter?

The battery measures 49.98 mm by 26.00 mm by 5.67 mm, matching the original compartment for Phonak inspiro and Roger transmitters.

How do I install the DS-CS-PHK300SL and which step is commonly missed?

Align the three-pin connector marked 3PINSBR with the transmitter socket, press firmly until it clicks, then secure the battery door; the step often missed is fully seating the connector before closing the door.

When will the DS-CS-PHK300SL need replacement and what indicates it?

The 3.7 V 500 mAh Li-Polymer cell will need replacement when operating time between charges becomes noticeably shorter or the transmitter powers off unexpectedly during use.

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