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Small rectangular Ni-MH battery pack with green shrink wrap and two terminals

Estry

Estry CP-725 3.6V 600mAh Ni-MH standard battery

SKU CH-PFH3-D5SJE MPN CP-725

Ni-MH replacement battery rated 3.6 V 600 mAh for Phone Mate CP-725, TC925, TC-925, 1350 and TC-508 handsets

  • Battery pack size1-pack
  • Battery typeNi-MH
  • Battery capacity600 mAh
  • Battery voltage rating3.6
  • Product typeBatteries
  • Exact-fit replacement for Phone Mate CP-725 and TC-925 handsets
  • 6 V 600 mAh Ni-MH chemistry delivers 2.16 Wh of reliable talk time
  • Built-in overcharge, over-discharge and short-circuit protection extends cell life
  • Compact 42.57 x 30.2 x 14.43 mm pack weighs just 77.4 g
  • Certified to ISO 9001, RoHS, CE and UN 38.3 safety standards

Replacement Battery for Cordless Phones

The Estry CP-725 is a nickel-metal hydride pack rated at 3.6V and 600mAh. It serves as a direct replacement for Phone Mate models CP-725, TC925, TC-925, 1350 and TC-508. The single-cell unit weighs 77.4g and measures 42.57 x 30.2 x 14.43mm.

Built-in Protection and Certifications

The pack includes overcharge, over-discharge, over-voltage and short-circuit protection circuits. These safeguards help extend service life and improve operational safety. The product holds ISO9001, RoHS, CE, UN38.3 and MSDS certifications confirming quality and environmental compliance.

Verify Model and Part Number Before Ordering

Confirm that your handset or base station lists one of the compatible model numbers shown above. Cross-check the original battery part number if it is printed on the old pack. The physical dimensions and connector orientation must match the compartment in your device.

How it compares

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

Price $10.99
Typical for this category: the median of 10,440 items is $10.99.

Specifications

Product
Brand namePhone Mate
Product typeBatteries
Power
Battery typeNi-MH
Battery capacity600 mAh
Battery voltage rating3.6
In the box
Battery pack size1-pack

Questions about this item

When will the 600mAh Ni-MH pack need replacing?

Replace when talk time drops below half the original or the handset no longer holds a charge after a full cycle.

What limits runtime during a long call?

The 2.16 Wh capacity sets the maximum talk time before voltage falls below the handset cut-off.

Does the 77.4 g pack get warm on the charger all day?

Normal charging warms it slightly; the built-in over-voltage and short-circuit protection stops excess heat.

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