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Small rectangular lithium battery pack with smooth grey finish and connector ribbon

Estry

Estry Battery Replacement Beats Solo 3.0 2.0 AEC353535 300mAh 3.7V

SKU CH-ZYDT-2ZZEE

Replacement lithium battery for Beats Solo 2.0 and 3.0 headphones, 300 mAh capacity, 3.7 V, 353535 part number

  • TypeBatteries
  • Battery Pack1-pack
  • Battery TypeLithium
  • Battery Capacity300mAh
  • Battery Voltage3.7
  • Restores up to 350 mAh capacity for longer listening
  • Fits Solo 3.0 and Solo 2.0 headphones precisely
  • Built-in protection guards against overcharge and short circuits
  • Certified to ISO 9001, RoHS, CE, UN38.3 and MSDS standards
  • Slim 3.64 mm profile weighs only 32.4 g

Replacement Battery for Beats Solo 3.0 and 2.0

This 3.7 V lithium cell replaces the original AEC353535 pack inside Beats Solo 3.0 and Solo 2.0 headphones. It restores playback time for owners whose factory battery no longer holds a charge. The single-cell pack fits the existing compartment without modification.

Built-in protection against overcharge

Safety circuitry guards against overcharge, over-discharge, over-voltage and short-circuit events during daily use. RoHS, CE, ISO 9001 and UN 38.3 certifications confirm compliance with international transport and substance restrictions. Normal operation stays within the rated 3.7 V envelope.

Capacity rated at 300 mAh and 1.3 Wh

The cell delivers 300 mAh at 3.7 V for an energy rating of 1.3 Wh. Physical dimensions are 33.94 x 34.88 x 3.64 mm and weight is 32.4 g. Verify the AEC353535 part number on your original battery before ordering to ensure compatibility.

Highlights

  • Restores up to 350 mAh capacity for longer listening
  • Fits Solo 3.0 and Solo 2.0 headphones precisely
  • Built-in protection guards against overcharge and short circuits
  • Certified to ISO 9001, RoHS, CE, UN38.3 and MSDS standards
  • Slim 3.64 mm profile weighs only 32.4 g

Specifications

BrandBeats
TypeBatteries
Battery Pack1-pack
Battery TypeLithium
Battery Capacity300mAh
Battery Voltage3.7

Questions about this item

How do I install the Estry AEC353535 battery in my Beats Solo 3.0 or 2.0, and what step often gets missed?

Open the earcup, disconnect the original pack, and connect the new 3.7 V 350 mAh cell; the step most people miss is routing the flex cable so it isn't pinched when the housing snaps shut.

What maintenance or replacement will this 1.3 Wh lithium pack need later?

The cell has overcharge, over-discharge, over-voltage and short-circuit protection, so no routine maintenance is required; when runtime falls below your needs, simply replace the pack again.

What limit appears first during sustained use of this 32.4 g replacement battery?

The 350 mAh capacity determines playtime; under continuous load the pack will reach its voltage floor and shut down before any thermal or protection limit is triggered.

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