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Rectangular lithium battery pack, flat grey finish, compact 44.73 by 37.4 mm

Estry

Estry PHA-1AEU 1000mAh 3.7V standard battery

SKU CH-079H-RF826 MPN PHA-1AEU

Replacement lithium battery delivering 1000 mAh at 3.7 V for Sony headphones and portable amplifiers

  • TypeBatteries
  • Battery Pack1-pack
  • Battery TypeLithium
  • Battery Capacity1000mAh
  • Battery Voltage3.7
  • Replaces original battery in compatible Sony headphones
  • 1000 mAh lithium cell delivers 3.7 V power
  • Built-in protection guards against overcharge and short circuits
  • Certified to ISO 9001, RoHS, CE and UN 38.3
  • Compact 44.73 x 37.4 x 6.85 mm size fits existing compartment

Direct Replacement Battery

The Estry PHA-1AEU is a 3.7V lithium cell rated at 1000mAh and 3.89Wh. It matches the original LIS1580HNPC and SP73 part numbers used in several Sony headphone and portable amplifier models. The single pack weighs 46.0g and measures 44.73 x 37.4 x 6.85mm. Safety circuits guard against overcharge, over-discharge, over-voltage and short circuit.

Owners of Listed Sony Audio Gear

This cell fits the PHA-1AEU, SRS-BTS50, MDR-1000X, WH-1000XM2, MDR-1RNCMK2, MDR-1RNC, MDR-1ADAC, PHA-1, MDR-1ABT and PHA-1A. Buyers with different headphone models or other battery part numbers should look elsewhere because the connector and dimensions will not match.

Certified Protection Circuitry

ISO9001, RoHS, CE, UN38.3 and MSDS certifications confirm the pack meets recognised safety and environmental standards. The built-in protection board manages voltage limits and short-circuit events during daily use. No extra accessories, cables or software are included in the package.

Highlights

  • Replaces original battery in compatible Sony headphones
  • 1000 mAh lithium cell delivers 3.7 V power
  • Built-in protection guards against overcharge and short circuits
  • Certified to ISO 9001, RoHS, CE and UN 38.3
  • Compact 44.73 x 37.4 x 6.85 mm size fits existing compartment

Specifications

TypeBatteries
Battery Pack1-pack
Battery TypeLithium
Battery Capacity1000mAh
Battery Voltage3.7

Questions about this item

Which Sony headphone models will this Estry PHA-1AEU battery fit?

It replaces the original pack in the WH-1000XM2, MDR-1000X, MDR-1RNCMK2, MDR-1RNC, MDR-1ADAC, MDR-1ABT and the PHA-1, PHA-1A, PHA-1AEU portable amplifiers.

Will the replacement cell match the original 3.7 V operating voltage of my headphones?

Yes, the lithium cell is rated at 3.7 V, the same voltage used by the compatible Sony models listed.

How can I verify the battery is charging correctly after I install it?

The headphone or amplifier should show its normal charging indicator and reach full charge within the usual time; the pack includes over-charge and short-circuit protection for safe operation.

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