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Flat black rectangular lithium-polymer battery, 33.94 by 34.88 by 3.64 mm, for Beats Solo 2.0 and 3.0

Centenex Electronics

Centenex Electronics DS-CS-BST300SL Battery for Beats Solo 2.0 3.0 350mAh Black

SKU CH-YQAN-TD8DQ

Replacement lithium-polymer battery for Beats Solo 2.0 and 3.0 headphones, 3.7 V 350 mAh capacity, 33.94 × 34.88 × 3.64 mm, black

  • Product typeHeadPhone Battery
  • Restores wireless playback with 350 mAh Li-Polymer cell
  • Fits Solo 2.0 and Solo 3.0 headphones directly
  • 7 V 1.30 Wh rating matches original spec
  • Slim 33.94 × 34.88 × 3.64 mm profile slides inside earcup
  • Brand-new OEM-compatible replacement in black finish

Replacement Battery for Beats Solo 2.0 and 3.0

This Centenex Electronics DS-CS-BST300SL cell restores power to Beats Solo 2.0 and Solo 3.0 wireless headphones. It replaces the original AEC353535 pack and arrives in brand-new condition. The lithium-polymer unit is fully OEM compatible and coloured black.

350 mAh capacity with 1.30 Wh rating

The 3.7 V cell delivers 350 mAh, giving 1.30 Wh of energy for daily listening sessions. It comfortably handles several hours of playback before needing a recharge. Runtime drops when volume is kept at maximum or when active noise cancellation is engaged continuously.

Li-Polymer chemistry and compact form factor

The lithium-polymer construction allows a thin 3.64 mm profile that fits the original headphone cavity. The pack measures 33.94 mm by 34.88 mm, matching the factory footprint exactly. No larger capacity exists in this physical envelope, so extended runtime beyond the original specification is not possible.

How it compares

Measured against everything we stock in Earbuds & Over-Ear Headphones, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 90% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameCentenex Electronics
Model nameDS-CS-BST300SL
Product typeHeadPhone Battery

Questions about this item

Will this 350 mAh Li-Polymer cell fit inside my Solo 2.0 without modifying the housing?

The pack measures 33.94 x 34.88 x 3.64 mm and matches the AEC353535 form factor, so it drops into the original Solo 2.0 battery cavity with no trimming required.

How can I confirm the replacement is charging correctly after I install it?

Power on the headphones; the LED should show the normal charging animation and reach full charge in roughly the same time as the original 3.7 V 1.30 Wh cell.

Does the package include the small connector cable and adhesive strips, or must I source them separately?

Only the single black 350 mAh battery is supplied; the original flex cable and any securing tape must be reused or purchased elsewhere.

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