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Rectangular silver battery pack with connector, 69 by 18 by 18 mm

Cameron Sino PW3840 2600mAh 9.62Wh cell phone battery

SKU CH-YM4V-Z3MR1 MPN PW3840

Replacement battery for compatible Amazon speakers with 2600mAh capacity and 3.7V output

  • Typeunknown
  • Capacity2600mAh / 9.62Wh
  • Weight118
  • 2600 mAh capacity keeps your speaker running longer
  • 62 Wh energy rating matches original specifications
  • 7 V lithium cell fits PW3840, PW3840KL and Tap models
  • ISO 9001, RoHS and CE certified for safety
  • 0 g lightweight design installs easily in minutes

Replacement battery for Amazon Tap speakers

The Cameron Sino PW3840 is a new 2600mAh 9.62Wh cell phone battery built to match the original specifications for Amazon PW3840, PW3840KL and Tap models. It uses a Nickel-Zinc cell composition and operates at 3.7V with a fully decoded chip that works like the factory unit.

Thermals noise and power draw in normal use

The battery weighs 48.0g and measures 69.20 x 18.50 x 18.50 mm, fitting the original cavity without modification. Normal operation stays within the stated voltage and capacity limits, and the integrated protection circuit guards against overcharge, over-discharge, over-voltage and short circuit.

Bundled accessories and software impact

The package includes shock-absorbing foam for transit protection and the single replacement cell. No software, drivers or charging accessories are supplied; the manufacturer recommends two to three full charge cycles for best performance and advises against low-quality third-party chargers.

Highlights

  • 2600 mAh capacity keeps your speaker running longer
  • 62 Wh energy rating matches original specifications
  • 7 V lithium cell fits PW3840, PW3840KL and Tap models
  • ISO 9001, RoHS and CE certified for safety
  • 0 g lightweight design installs easily in minutes

Specifications

BrandCameron Sino
ModelPW3840, PW3840KL, Tap
Typeunknown
Part Number58-000138, R-41019534
Capacity2600mAh / 9.62Wh
Weight118

Questions about this item

How do I install the PW3840 battery and what step is most often missed?

Align the connector carefully and press it in until it clicks; the step most people miss is fully seating the connector so the decoded chip communicates with the speaker.

What maintenance will this 2600mAh cell need later?

Run two or three full charge and discharge cycles when new to reach best performance, then avoid low-quality chargers to preserve the protection circuit.

What limit appears first during sustained use of this 3.7V pack?

The over-temperature protection triggers at 60°C (140°F), cutting power before the over-discharge or short-circuit safeguards activate.

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