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Thin rectangular lithium-ion cell with gold contacts, 51.56 by 34.58 by 3.65 mm

Cameron Sino NW-A805 650mAh 3.7V replacement battery

SKU CH-7AHC-GQ3D6 MPN NW-A805

A 650 mAh 3.7 V replacement battery for compatible Sony media players, measuring 51.56 × 34.58 × 3.65 mm and weighing 13.0 g

  • Ready for Sony Walkman A and S series
  • 650 mAh capacity keeps music playing longer
  • Fully decoded chip works like the original
  • Slim 51.56 × 34.58 × 3.65 mm profile fits inside
  • ISO 9001, RoHS and CE certified quality

What it is and who it is for

This Cameron Sino replacement battery fits a wide range of Sony Walkman media players, including the NW-A805, NW-A806, NW-A808, NW-A815, NW-A816, NW-S639, NW-S639F, NWZ-A801, NWZ-A810, NWZ-A818, NWZ-A828 and NWZ-A829 series. It is a direct substitute for the original Sony 1-756-702-11, 7607A12353 and LIS1374HNPA packs. The cell is new and fully decoded so the player recognises it like the factory unit. It is not for owners of other Sony models or non-Sony devices.

Thermals noise and power draw

The lithium-polymer cell is rated at 3.7 V with a capacity of 650 mAh (2.41 Wh) and weighs 13.0 g. In normal playback the battery runs cool and silent because it has no moving parts. Self-discharge is low when the player is stored at room temperature. Do not store the cell above 60 °C (140 °F) and never disassemble, puncture or expose it to fire or water.

The specification that decides fit

The physical envelope measures 51.56 mm by 34.58 mm by 3.65 mm, so the battery must match that exact footprint and connector pitch to seat correctly in the player chassis. Verify your device model number and the original part number before ordering; a mismatch means the pack will not connect or the cover will not close.

Highlights

  • Ready for Sony Walkman A and S series
  • 650 mAh capacity keeps music playing longer
  • Fully decoded chip works like the original
  • Slim 51.56 × 34.58 × 3.65 mm profile fits inside
  • ISO 9001, RoHS and CE certified quality

Specifications

BrandCameron Sino
ModelNW-A805, NW-A805B, NW-A805P, NW-A805W, NW-A806B, NW-A806P, NW-A806V, NW-A806W, NW-A808B, NW-A815, NW-A816, NW-S639, NW-S639F, NWZ-A801, NWZ-A810, NWZ-A818, NWZ-A818BLK, NWZ-A828KBLK, NWZ-A829BLK, NWZ-S639

Questions about this item

How do I install the Cameron Sino NW-A805 battery in my Sony Walkman, and which step do people most often get wrong?

Open the player case, disconnect the original pack, then connect the new battery's connector exactly as the old one sat — the step most people miss is seating the connector fully so the decoded chip communicates with the device.

What maintenance or replacement will this 650 mAh 3.7 V pack need later?

The lithium-ion cell requires no scheduled maintenance; after several hundred charge cycles it will hold less charge, at which point you simply replace the pack with another NW-A805-compatible unit.

What limit appears first during sustained playback on this replacement battery?

The 2.41 Wh capacity sets the runtime ceiling — continuous play drains the 650 mAh cell until voltage drops to the player's cutoff, so the energy limit is reached before any thermal limit.

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