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

Estry

Estry standard battery 500mAh 3.7V for Momentum M3IETW AHB702535PCT-01

SKU CH-Y92H-P9W7A

A 500mAh 3.7V lithium replacement cell for Momentum M3IETW true-wireless earbuds, matching part AHB702535PCT-01 with overcharge and short-circuit protection

  • Battery pack size1-pack
  • Battery typeLithium
  • Battery capacity500 mAh
  • Battery voltage rating3.7
  • Product typeBatteries
  • Exact original specifications ensure reliable replacement
  • 500mAh 3.7V lithium cell delivers 1.85Wh runtime
  • Built-in overcharge over-discharge over-voltage short-circuit protection
  • Certified to ISO9001 RoHS CE UN38.3 MSDS standards
  • Compact 36.0 x 25.0 x 6.0mm fits Momentum M3IETW

Replacement battery for Momentum M3IETW

This lithium cell is a direct replacement for the Momentum True Wireless Charging M3IETW earbud case. It matches the original AHB702535PCT-01 part number and supplies 3.7V with a 500mAh capacity. The single pack restores power to the charging case so the earbuds can be recharged on the go. It is intended for owners of that specific model who need a fresh power source.

Certified safety protections included

The cell integrates overcharge, over-discharge, over-voltage and short-circuit protection circuits. These safeguards help prevent damage during daily charging cycles and extend the usable life of the battery. Compliance is backed by ISO9001, RoHS, CE, UN38.3 and MSDS certifications. No extra accessories or software are bundled with the battery itself.

Physical fit limits installation to one model

The pack measures 36.0 x 25.0 x 6.0mm and weighs 35.2g, so it only fits the M3IETW case designed for those exact dimensions. Builders who need a different form factor or higher capacity cannot use this cell. The 1.85Wh energy rating also restricts it to low-drain applications such as true wireless earbud charging cases.

How it compares

Measured against everything we stock in Household Batteries & Chargers, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 60% of the 10,440 comparable items (median $10.99).

Specifications

Product
Product typeBatteries
Power
Battery typeLithium
Battery capacity500 mAh
Battery voltage rating3.7
In the box
Battery pack size1-pack

Questions about this item

How often will the 500mAh lithium cell need replacing under normal daily charging cycles?

The 500mAh lithium cell is built to original specifications with overcharge and over-discharge protection; typical lifespan matches the original battery in the Momentum M3IETW, so replacement timing depends on your charge habits rather than a fixed schedule.

What capacity limit appears first when the earbuds run continuously at full volume?

The 500mAh / 1.85Wh capacity sets the runtime ceiling; sustained high-volume playback will drain the 3.7V cell until the protection circuit cuts off at the lower voltage threshold.

Does the 36.0 x 25.0 x 6.0mm pack generate noticeable warmth or noise during all-day use inside the charging case?

The slim 6.0mm lithium pack has no moving parts and operates silently; normal charging and discharging produce only slight warmth well within the CE, RoHS and UN38.3 safety limits.

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