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Black rectangular lithium-polymer battery pack, 36.3 by 20.2 by 4.6 mm

Cameron & Co

Cameron & Co DS-CS-BQC2SL HeadPhone Battery 240mAh 3.7V

SKU CH-T7PJ-BD9GR

Li-Polymer replacement battery for Bose QC20 and QuietComfort 20 headsets, 240 mAh, 3.7 V, 0.89 Wh

  • Product typeHeadPhone Battery
  • Compatible with Bose QC20 and QuietComfort 20
  • Li-Polymer chemistry delivers 240 mAh capacity
  • 7 V nominal voltage provides 0.89 Wh energy
  • Compact 36.30 × 20.20 × 4.60 mm form factor
  • 100 % OEM-compatible replacement for PR-452035

Replacement battery for Bose QC20 headphones

This Cameron Sino lithium-polymer cell replaces the PR-452035 pack used in Bose QuietComfort 20 headsets. It delivers 3.7 volts and 240 milliampere-hours for 0.89 watt-hours of capacity. The black pouch measures 36.30 by 20.20 by 4.60 millimetres and arrives brand new with full OEM compatibility.

Direct-fit cell restores original run-time

The battery slots into the existing compartment without adapters or soldering because it matches the factory dimensions and connector layout. Its 0.24 ampere-hour rating mirrors the OEM specification so charging behaviour and fuel-gauge accuracy stay unchanged. No firmware updates or calibration tools are required after installation.

Suits owners of QC20 models needing a fresh power

Buyers whose headsets no longer hold a charge will regain full portable use. Users of other Bose headphones or rival brands should look elsewhere because the form factor and pin-out are specific to the QC20 series. Anyone uncomfortable with opening a sealed earcup may prefer professional fitting.

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 nameCameron Sino
Model nameDS-CS-BQC2SL
Product typeHeadPhone Battery

Questions about this item

How often will the Li-Polymer 240mAh cell need replacing under normal use?

Li-Polymer cells typically last several hundred charge cycles; expect to replace the battery when run-time drops noticeably below the original 0.89 Wh rating.

What capacity limit appears first during a long listening session?

The 240 mAh / 0.89 Wh capacity sets the maximum continuous playtime before a recharge is required.

Does the 3.7 V pack generate noticeable heat or noise during all-day operation?

The slim 36.30 x 20.20 x 4.60 mm Li-Polymer pack has no moving parts and runs silently with minimal warmth under normal load.

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