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Rectangular lithium-polymer battery pack with flat silver finish, 41.7 by 36.1 by 7.0 mm

Cameron Sino SP723741 1200mAh 3.80V standard battery

SKU CH-Q3SA-YSKY6

Replacement lithium-polymer battery for Sony WH-1000XM5 charging case, 1200mAh at 3.80V

  • Battery pack size41.7 × 36.1 × 7
  • Battery typeLithium polymer
  • Battery capacity1,200 mAh
  • Battery voltage rating3.8 V
  • Details41.7 × 36.1 × 7
  • Product typeLithium polymer
  • Replacement battery for Sony WH-1000XM5 charging case
  • 1200mAh capacity at 3.80V lithium-polymer power
  • 56Wh energy rating for extended listening time
  • Compact 41.70 x 36.10 x 7.00mm form factor
  • Certified ISO9001 RoHS CE for safety compliance

Replacement Battery for Sony WH-1000XM5 Case

This lithium-polymer cell replaces the original SP723741 pack inside the Sony WH-1000XM5 charging case. It delivers 1200mAh at 3.80 volts and matches the 41.70 x 36.10 x 7.00 millimetre form factor. The pack is intended for owners whose case no longer holds a full charge.

Restored Runtime and Protection

The new cell restores the case's ability to recharge the headphones multiple times between wall charges. Built-in circuitry guards against overcharge, over-discharge, over-voltage and short circuits. A fresh battery reaches its best capacity after two or three complete charge and discharge cycles.

Verify Model and Connector Before Fitting

Confirm that your charging case carries the SP723741 part number or one of the listed AEG CX8 references before ordering. Check that the connector on the replacement aligns with the case's socket and that the polarity matches the original. Avoid using low-quality third-party chargers, as they can reduce the cell's service life.

How it compares

Measured against everything we stock in Household Batteries & Chargers, at today’s prices. Recalculated every night.

Price $15.99
Pricier than about 70% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameCameron Sino
Model nameWF-1000XM5, WH-1000XM5
Part numberSP723741
Product typeLithium polymer
Power
Battery typeLithium polymer
Battery capacity1,200 mAh
Battery voltage rating3.8 V
In the box
Battery pack size41.7 × 36.1 × 7

Questions about this item

How many charge cycles before the 1200mAh lithium-polymer cell needs replacement?

A new battery reaches its best performance after 2 or 3 complete charge and discharge cycles.

What is the first limit reached when the battery runs continuously in the charging case?

The 4.56Wh capacity at 3.80V determines how long the case can power the headphones before recharging.

Does the SP723741 pack generate noticeable heat during all-day use in the case?

The lithium-polymer chemistry and built-in protection circuits keep temperature rise low under normal charging loads.

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