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Small rectangular lithium-polymer battery pack with tiny screwdrivers and pry tools alongside

MPF Products

MPF Products 300mAh 3.7V Battery for Garmin Fenix 3 HR with Tools

SKU CH-BZTW-0N1DY

Replacement 3.7V 300mAh lithium-polymer battery for Garmin Fenix 3 and Fenix 3 HR, includes installation tools

  • TypeReplacement Battery
  • Specification3.7V 300mAh 1.1Wh Lithium-Polymer Rechargeable Battery Pack.
  • FeaturesIncludes Free Installation Tools.
  • Restores GPS tracking with 300 mAh 3.7 V lithium-polymer cell
  • Fits Fenix 3 and Fenix 3 HR models including 010-01338-00 and 010-01338-73
  • Replaces original 361-00034-02 FLPB342735-P1 and WX30 part numbers
  • Supplies 1.1 Wh energy capacity for extended workout sessions
  • Includes installation tools for straightforward self-replacement

300mAh 3.7V lithium-polymer replacement

This MPF Products battery replaces the original Garmin 361-00034-02, FLPB342735-P1 and WX30 cells. It delivers 3.7 volts and 300mAh capacity in a lithium-polymer pack rated at 1.11Wh. The unit is supplied new and includes a set of installation tools.

Compatible Garmin Fenix 3 and Fenix 3 HR models

The battery fits Garmin Fenix 3 and Fenix 3 HR smartwatches covering part numbers 010-01338-00, 010-01338-05, 010-01338-10, 010-01338-15, 010-01338-70, 010-01338-7C, 010-01338-7B and 010-01338-73. It is not suitable for other Garmin ranges or for watches that require a different voltage or capacity.

Install with included tools and restore runtime

The supplied tools let you open the watch case and swap the cell without sourcing separate screwdrivers or pry tools. Replacing the pack restores the original 1.11Wh energy rating. No soldering equipment or adhesive beyond what the watch already uses is needed.

Highlights

  • Restores GPS tracking with 300 mAh 3.7 V lithium-polymer cell
  • Fits Fenix 3 and Fenix 3 HR models including 010-01338-00 and 010-01338-73
  • Replaces original 361-00034-02 FLPB342735-P1 and WX30 part numbers
  • Supplies 1.1 Wh energy capacity for extended workout sessions
  • Includes installation tools for straightforward self-replacement

Specifications

BrandMPF Products
ModelCompatible with the Following Garmin Smartwatch Models: Garmin Fenix 3, Garmin Fenix 3 HR, 010-01338-00, 010-01338-05, 010-01338-10, 010-01338-15, 010-01338-70, 010-01338-7C, 010-01338-7B, 010-01338-73.
Part NumberReplacement for the Following Garmin Battery Model/Part Numbers: 361-00034-02, FLPB342735-P1, WX30.
TypeReplacement Battery
Specification3.7V 300mAh 1.1Wh Lithium-Polymer Rechargeable Battery Pack.
FeaturesIncludes Free Installation Tools.

Questions about this item

Does the 3.7V 300mAh pack fit my Garmin Fenix 3 HR without soldering?

The battery matches part numbers 361-00034-02, FLPB342735-P1 and WX30, so it slots into the Fenix 3 and Fenix 3 HR exactly like the original cell.

Will my existing charging cradle still work after I swap in this 1.11Wh replacement?

Yes, the voltage and chemistry are identical to the factory pack, so the original cradle charges it normally.

How do I verify the new cell is holding a full charge after installation?

Power on the watch and confirm the battery indicator reaches 100 %; the 300mAh capacity should deliver the same runtime you had when the device was new.

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