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Rectangular lithium-ion battery pack, blue shrink wrap with printed labels

MPF Products

MPF Products 3350mAh Battery for Amazon Tap PW3840 PW3840KL

SKU CH-5YV0-EDMMY

3350 mAh lithium-ion pack replaces the 58-000138 and R-41019534 cells in Amazon Tap PW3840 and PW3840KL speakers and includes installation tools

  • 3350mAh capacity powers the Amazon Tap for extended listening
  • 7V lithium-ion chemistry delivers stable 12.40Wh energy output
  • Replaces original part numbers 58-000138 and R-41019534 exactly
  • Compatible with Amazon Tap models PW3840 and PW3840KL
  • Free installation tools included for straightforward battery swap

Replacement battery for Amazon Tap

This 3350 mAh lithium-ion pack replaces the original 58-000138 and R-41019534 cells inside the Amazon Tap PW3840 and PW3840KL speakers. It restores portable playback for owners whose built-in battery no longer holds a useful charge. The 3.7 V, 12.40 Wh rating matches the factory specification. Buyers needing a different form factor or a higher capacity will not be served by this pack.

Thermals and power in daily use

The cell chemistry is standard lithium-ion rated at 3.7 V and 12.40 Wh, so heat output during charging and playback stays within the speaker’s original thermal envelope. No active cooling is required and the speaker’s existing venting handles the load. The pack draws the same current profile as the OEM unit, preserving the device’s designed battery life per cycle.

Included installation tools

A small tool kit ships with the battery, providing the pry pieces and drivers needed to open the Tap enclosure and swap the cell without sourcing separate hardware. The kit covers the single internal connector and adhesive points used in this model. No software, firmware update or calibration utility is bundled or required.

Highlights

  • 3350mAh capacity powers the Amazon Tap for extended listening
  • 7V lithium-ion chemistry delivers stable 12.40Wh energy output
  • Replaces original part numbers 58-000138 and R-41019534 exactly
  • Compatible with Amazon Tap models PW3840 and PW3840KL
  • Free installation tools included for straightforward battery swap

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 3350mAh battery in my Amazon Tap PW3840, and what step is often missed?

Open the base cover, disconnect the old pack, connect the new 3.7V 3350mAh unit matching the polarity, then secure the cover; the step often missed is forgetting to reseat the connector fully before closing the case.

What maintenance or replacement will the 3350mAh lithium-ion pack need over time?

The 3350mAh lithium-ion pack will gradually lose capacity after several hundred charge cycles; when run time drops below your needs, replace it with another 58-000138 or R-41019534 compatible pack.

What limit appears first during sustained playback on the Amazon Tap PW3840KL with this battery?

The 12.40Wh capacity sets the runtime ceiling; under continuous high-volume playback the pack will deplete before thermal limits become a factor.

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