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Rectangular Ni-MH battery pack, green shrink wrap, white label, 42.57 by 30.2 by 14.43mm

Estry

Estry Standard Battery Ni-MH 3.6V 600mAh for Aastra MAESTRO 4525 4625 4600

SKU CH-52GA-2VD4S

Ni-MH replacement battery, 3.6V 600mAh, fits Aastra MAESTRO 4525, 4625 and 4600 handsets

  • TypeBatteries
  • Battery Pack1-pack
  • Battery TypeNi-MH
  • Battery Capacity600mAh
  • Battery Voltage3.6
  • Reliable power for Aastra MAESTRO 4525 4625 4600 handsets
  • Built to original 3.6V 600mAh specifications for exact fit
  • Safety protections against overcharge over-discharge and short circuit
  • Certified to ISO 9001 RoHS CE and UN 38.3 standards
  • Compact 42.57 x 30.2 x 14.43 mm design weighs 77.4 g

Replacement Battery for Aastra MAESTRO Handsets

This Estry Ni-MH battery pack replaces the original power cell in Aastra MAESTRO 4525, 4625 and 4600 cordless phones. It delivers 3.6V and 600mAh capacity for reliable talk and standby time. The pack is sold as a single unit weighing 77.4g.

Voltage and Capacity Match the Original

The battery supplies exactly 3.6V and 600mAh, yielding 2.16Wh, which matches the factory specification for the listed handsets. Ni-MH chemistry provides stable discharge without memory effect when cycled normally. Built-in protection guards against overcharge, over-discharge, over-voltage and short circuits.

Direct Fit for MAESTRO 4525 4625 4600

The pack measures 42.57 x 30.2 x 14.43mm and slots into the handset battery compartment without modification. No soldering or adapter is required; the original connector aligns with the replacement terminals. Buyers needing a different voltage, a higher capacity or a multi-pack bundle will need another product.

Highlights

  • Reliable power for Aastra MAESTRO 4525 4625 4600 handsets
  • Built to original 3.6V 600mAh specifications for exact fit
  • Safety protections against overcharge over-discharge and short circuit
  • Certified to ISO 9001 RoHS CE and UN 38.3 standards
  • Compact 42.57 x 30.2 x 14.43 mm design weighs 77.4 g

Specifications

BrandAastra
TypeBatteries
Battery Pack1-pack
Battery TypeNi-MH
Battery Capacity600mAh
Battery Voltage3.6

Questions about this item

How long will the 600 mAh capacity run a MAESTRO handset in daily use?

The 600 mAh pack supplies 2.16 Wh at 3.6 V, matching the original battery so talk and standby times stay the same as when the phone was new.

What connector standard does the pack use and what voltage does it deliver?

It plugs into the MAESTRO 4525, 4625 and 4600 handsets and provides a nominal 3.6 V Ni-MH output.

Will the 42.57 × 30.2 × 14.43 mm pack fit the battery compartment of my MAESTRO 4600?

Yes, those are the exact dimensions of the original pack so it seats correctly in the 4525, 4625 and 4600 models.

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