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Rectangular lithium cell, silver label, 36.8 by 25.2 by 5.6 millimetres

Estry

Estry M-RO052 500mAh 3.7V cell phone battery

SKU CH-ZME5-227KG MPN M-RO052

A 500 mAh 3.7 V lithium rechargeable cell for Logitech MX Master and MX Anywhere mice, measuring 36.84 × 25.2 × 5.6 mm and weighing 35.0 g

  • TypeRechargeable Batteries
  • Battery TypeLithium
  • Battery Capacity500mAh
  • Battery Voltage3.7
  • 500 mAh capacity powers compatible Logitech mice longer
  • 7 V lithium cell matches original voltage specifications
  • built-in overcharge, over-discharge and short-circuit protection
  • certified to ISO 9001, RoHS, CE and UN 38.3 standards
  • compact 36.84 × 25.2 × 5.6 mm form factor fits original battery bay

Direct Replacement Cell

This Estry M-RO052 lithium cell replaces the original battery in Logitech MX Master and MX Anywhere mice. It matches the factory voltage of 3.7V and fits the same 36.84 x 25.2 x 5.6mm footprint. Buyers who need a higher-capacity pack or a different form factor cannot use this unit.

Drop-In Installation

The cell slides into the existing battery compartment without soldering or adapter cables. It connects to the mouse’s original terminals and works with the onboard charging circuit. Builds that require an external pack or a proprietary connector are not supported by this design.

Protected Cycle Life

Built-in circuitry guards against overcharge, over-discharge, over-voltage and short-circuit events during long work sessions. The 500mAh rating delivers consistent runtime across repeated charge cycles. Users who demand weeks of uninterrupted use between charges will find the capacity fixed at this level.

Highlights

  • 500 mAh capacity powers compatible Logitech mice longer
  • 7 V lithium cell matches original voltage specifications
  • built-in overcharge, over-discharge and short-circuit protection
  • certified to ISO 9001, RoHS, CE and UN 38.3 standards
  • compact 36.84 × 25.2 × 5.6 mm form factor fits original battery bay

Specifications

TypeRechargeable Batteries
Battery TypeLithium
Battery Capacity500mAh
Battery Voltage3.7

Questions about this item

How long will the 500mAh capacity last before the voltage drops under continuous mouse use?

The cell is rated at 500mAh and 3.7V, giving 1.67Wh of energy; actual runtime depends on the mouse model and usage pattern.

Does the 35.0g lithium cell generate noticeable heat during all-day operation?

The battery includes overcharge, over-discharge, over-voltage and short-circuit protection, which limits heat build-up during extended use.

Which Logitech mouse part numbers must I already have for this replacement to fit?

It replaces part numbers 533-000120, 533-000121, 533-000172 and AHB303450, used in MX Master, MX Master 2, MX Master 2s, MX Master 3, MX Anywhere 2, MX Anywhere 3 and MX ERGO.

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