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Rectangular black lithium-polymer battery, 31.8 by 20.45 by 4.73 mm

Cameron & Co

Cameron & Co DS-CS-FE500SL Li-Polymer Battery 3.7V 190mAh

SKU CH-D3NZ-81BDJ

A 3.7 V 190 mAh lithium-polymer replacement cell for Fiio E3, E5 and E6 portable headphone amplifiers

  • TypeBluetooth Headset
  • Replacement battery fits Fiio E3, E5, E6 amplifiers
  • 7 V 190 mAh capacity restores original runtime
  • Slim 31.80 x 20.45 x 4.73 mm profile slides into tight compartments
  • Li-polymer chemistry delivers 0.70 Wh energy density
  • 100 % OEM compatible for reliable drop-in installation

Purpose-built replacement

This Cameron Sino DS-CS-FE500SL lithium-polymer cell is a direct-fit battery for Fiio E3, E5 and E6 portable headphone amplifiers. It restores the original 3.7 V, 190 mAh capacity so the amplifier runs exactly as designed.

Ready-to-install pack

The unit ships as a single black cell measuring 31.80 x 20.45 x 4.73 mm with the PL402030 1S1P footprint. No soldering adapters, wiring harnesses or firmware tools are included; the battery simply slots into the existing compartment.

Capacity match decides fit

The 0.70 Wh rating must equal the amplifier’s factory specification; a higher or lower watt-hour value would change run-time or risk damage. Verify the original cell reads 3.7 V 190 mAh before ordering.

Highlights

  • Replacement battery fits Fiio E3, E5, E6 amplifiers
  • 7 V 190 mAh capacity restores original runtime
  • Slim 31.80 x 20.45 x 4.73 mm profile slides into tight compartments
  • Li-polymer chemistry delivers 0.70 Wh energy density
  • 100 % OEM compatible for reliable drop-in installation

Specifications

BrandCameron Sino
ModelDS-CS-FE500SL
TypeBluetooth Headset

Questions about this item

How often will the Li-Polymer 190mAh cell need replacing?

The 0.19 Ah pack is rated for hundreds of charge cycles; typical portable amplifier use sees a service life of two to three years before capacity drops noticeably.

What limits runtime during a long listening session?

The 0.70 Wh capacity sets the hard ceiling; at the amplifier's normal draw the battery delivers roughly eight to ten hours of continuous playback.

Does the 31.80 x 20.45 x 4.73 mm pack get warm during all-day use?

Li-Polymer chemistry runs cool at the low currents drawn by Fiio E3, E5 and E6 amplifiers; the slim 4.73 mm cell stays near ambient temperature even after a full discharge cycle.

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