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Small rectangular lithium-polymer battery pack with two wire leads

MPF Products

MPF Products 80mAh 3.7V Battery 361-00088-00 for Garmin Approach X40 Vivosmart HR HR+

SKU CH-FMSD-NFFBX

3.7 V 80 mAh lithium-polymer pack replaces the 361-00088-00 cell in Garmin Approach X40, Vivosmart HR and HR+ watches

  • Specification3.7V 80mAh 0.3Wh Lithium-Polymer Rechargeable Battery Pack.
  • Restores GPS golf tracking on Approach X40 with direct-fit 80 mAh cell
  • Revives daily activity monitoring for Vivosmart HR and HR+ bands
  • Matches original 3.7 V 0.3 Wh lithium-polymer specification for safe charging
  • Replaces OEM part 361-00088-00 across 15 Garmin model numbers
  • Ready-to-install rechargeable pack extends wearable runtime without soldering

Replacement battery for Garmin wearables

This 3.7V 80mAh lithium-polymer pack replaces the original 361-00088-00 cell in the Garmin Approach X40, Vivosmart HR and Vivosmart HR+. It restores power to golf watches and activity trackers that no longer hold a charge. The 0.3Wh capacity matches the factory specification for these models.

Steady daily discharge profile

The cell delivers its rated 80mAh over the long, low-current cycles typical of GPS logging and heart-rate monitoring rather than short high-drain bursts. Voltage remains stable across a full day of course navigation or step tracking. Capacity fade follows the normal lithium-polymer ageing curve with regular charging.

Verify watch model and part number

Confirm the back of your device lists one of the compatible part numbers such as 010-01513-00 through 010-01513-04 or 010-01955-06 through 010-01955-39. Opening the sealed case requires small tools and adhesive removal, so assess your repair skill before ordering. This pack is not suited for devices that use a different battery code.

Highlights

  • Restores GPS golf tracking on Approach X40 with direct-fit 80 mAh cell
  • Revives daily activity monitoring for Vivosmart HR and HR+ bands
  • Matches original 3.7 V 0.3 Wh lithium-polymer specification for safe charging
  • Replaces OEM part 361-00088-00 across 15 Garmin model numbers
  • Ready-to-install rechargeable pack extends wearable runtime without soldering

Specifications

BrandMPF Products
ModelIntended for/Compatible with the Following Watch Models: Garmin Approach X40, Garmin Vivosmart HR, Garmin Vivosmart HR+, 010-01513-00, 010-01513-01, 010-01513-02, 010-01513-03, 010-01513-04, 010-01955-06, 010-01955-07, 010-01955-08, 010-01955-09, 010-01955-36, 010-01955-37, 010-01955-38, 010-01955-39.
Part NumberReplacement for the Following Battery Model/Part Numbers: 361-00088-00.
Specification3.7V 80mAh 0.3Wh Lithium-Polymer Rechargeable Battery Pack.

Questions about this item

Does the 3.7 V 80 mAh lithium-polymer pack run warm during all-day GPS use on the Approach X40?

The 0.3 Wh cell is designed for the watch's normal load and does not generate noticeable heat during continuous GPS tracking.

What tools or connectors do I need to fit the 361-00088-00 replacement into a Vivosmart HR+?

You need a small Phillips screwdriver and a plastic pry tool to open the case and disconnect the original battery ribbon cable.

Will the 80 mAh capacity match the original runtime on a 010-01955-07 model?

Yes, the 3.7 V 80 mAh specification matches the factory cell used in the 010-01955 series, so battery life is unchanged.

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