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Rectangular white battery pack with two wire leads, 42 by 30 by 14 millimetres

Estry

Estry 3.6 V 600 mAh Ni-MH standard battery

SKU CH-3KH9-QFE10

Replacement Ni-MH battery for BT Verve and Freestyle cordless phones, 3.6 V 600 mAh with overcharge and short-circuit protection

  • Battery pack size1 Year
  • Details3.6
  • Direct replacement for BT cordless phones
  • 6 V 600 mAh Ni-MH chemistry delivers 2.16 Wh
  • Built-in overcharge and short-circuit protection
  • Certified to ISO 9001 RoHS CE UN 38.3 MSDS
  • Compact 42.45 x 29.77 x 14.37 mm pack weighs 87.7 g

Replacement battery for BT cordless phones

The Estry 3.6 V 600 mAh Ni-MH cell matches the original specifications for BT Verve 100 and Freestyle handsets including the 75, 80, 100, 120, 130, 300, 320, 520, 1000, 1025 and 1100 models. It measures 42.45 x 29.77 x 14.37 mm and weighs 87.7 g.

Thermal behaviour and power draw

Ni-MH chemistry runs cool during normal talk and standby cycles with no active cooling required. Self-discharge is low so the handset holds charge for weeks between dockings. The 2.16 Wh capacity delivers typical cordless phone runtime without excessive heat.

Protections and certifications

Built-in circuitry guards against overcharge, over-discharge, over-voltage and short circuit for safer daily use. The pack carries ISO 9001, RoHS, CE, UN 38.3 and MSDS certifications confirming quality and toxic-free materials. No charger or software is bundled; the cell simply drops into the existing handset cradle.

How it compares

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

Price $12.99
Pricier than about 60% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameNi-MH
Model name600 mAh
In the box
Battery pack size1 Year

Questions about this item

How do I install this 3.6 V 600 mAh Ni-MH battery in my BT Verve 100 handset, and what step do people often miss?

Open the battery compartment, match the connector polarity, plug the pack in firmly, and secure the cover; the step many miss is charging the new pack for 16 hours before first use so the cells balance properly.

What maintenance or replacement will this 600 mAh pack need over time?

Ni-MH cells self-discharge, so top up the charge every few months if the phone sits unused; plan to replace the pack when talk time falls noticeably, typically after several hundred charge cycles.

What limit appears first during a long call on this 2.16 Wh battery?

Capacity is the limiting factor — the 600 mAh rating governs how long the handset stays active before the voltage drops and the phone powers down.

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