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Small rectangular lithium battery pack 36.0 by 25.0 by 6.0mm 500mAh 3.7V

Estry

Estry M3AEBT standard battery 500mAh 3.7V 1-pack

SKU CH-110F-P9C5Q MPN M3AEBT

Lithium replacement battery rated 500mAh at 3.7V for Momentum True Wireless 2, Momentum 3 Wireless and MTW models

  • TypeBatteries
  • Battery Pack1-pack
  • Battery TypeLithium
  • Battery Capacity500mAh
  • Battery Voltage3.7
  • Direct replacement for Momentum True Wireless models
  • 500mAh capacity restores original playtime
  • Built-in protection against overcharge and short circuit
  • Certified to ISO9001, RoHS, CE and UN38.3
  • Compact 36.0 x 25.0 x 6.0mm form factor

Replacement Battery for Sennheiser Momentum Earbuds

This Estry M3AEBT lithium cell replaces the original battery in compatible Sennheiser Momentum True Wireless and Momentum 3 Wireless models. It delivers 500mAh capacity at 3.7V for 1.85Wh of energy. The single pack contains one 36.0 x 25.0 x 6.0mm cell weighing 35.2g.

Upgrades Worn Cells in Listed Models

It replaces depleted AHB702535PCT-01 packs inside Momentum True Wireless 2, Momentum True Wireless 2 Charg, Momentum True Wireless MTW and Momentum True Wireless earbuds. The jump is worth it when the original cell no longer holds a full charge or shows reduced playback time. Confirm the exact model and part number before ordering.

Limits of Lithium Coin-Cell Form Factor

The 500mAh capacity is fixed by the 36.0 x 25.0 x 6.0mm dimensions required to fit the earbud housing. Voltage is set at 3.7V by the lithium chemistry used. Protection circuits guard against overcharge, over-discharge, over-voltage and short circuits. Certifications include ISO9001, RoHS, CE, UN38.3 and MSDS.

Highlights

  • Direct replacement for Momentum True Wireless models
  • 500mAh capacity restores original playtime
  • Built-in protection against overcharge and short circuit
  • Certified to ISO9001, RoHS, CE and UN38.3
  • Compact 36.0 x 25.0 x 6.0mm form factor

Specifications

TypeBatteries
Battery Pack1-pack
Battery TypeLithium
Battery Capacity500mAh
Battery Voltage3.7

Questions about this item

Will the 36.0 x 25.0 x 6.0 mm dimensions fit inside my Momentum True Wireless 2 earbud?

The cell measures 36.0 by 25.0 by 6.0 millimetres and weighs 35.2 grams, matching the original AHB702535PCT-01 form factor for the listed Momentum models.

What is the correct polarity orientation when soldering this 3.7 V lithium cell to the earbud PCB?

Align the positive and negative tabs exactly as the original battery was connected; reversing them will trigger the built-in protection circuit and prevent charging.

How many charge cycles can I expect from the 500 mAh 1.85 Wh cell before capacity drops noticeably?

The lithium pack is rated for typical lithium-ion cycle life; capacity will gradually decline after several hundred full charge-discharge cycles under normal use.

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