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Small rectangular Ni-MH battery pack with connector, 42.45 by 29.77 by 14.37mm

Estry

Estry Standard Battery 3.6V 600mAh for BT Freestyle 50 70 90 100 1050

SKU CH-1TRG-Z0M7Z

Ni-MH 3.6 V 600 mAh replacement battery fits BT Freestyle 50, 70, 90, 100 and 1050 handsets

  • Battery pack size1 Year
  • Details3.6
  • Exact-fit replacement for BT Freestyle 50, 70, 90, 100, 1050
  • 6V 600mAh Ni-MH chemistry delivers 2.16Wh reliable runtime
  • Compact 42.45 x 29.77 x 14.37mm size fits handset battery bay
  • Certified to ISO 9001, RoHS, CE and UN38.3 safety standards
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection

Compatible BT Freestyle handsets

This Estry replacement battery fits BT Freestyle 50, 70, 90, 100 and 1050 cordless phones. It delivers the same 3.6V 600mAh Ni-MH specification as the original pack. The cell carries ISO9001, RoHS, CE, UN38.3 and MSDS certifications for safety and environmental compliance.

Drop-in fit for existing handset

The pack measures 42.45 by 29.77 by 14.37mm and weighs 87.7g, matching the original battery cavity. No wiring changes or adapter plates are required; the connector aligns with the handset terminals. Built-in protection guards against overcharge, over-discharge, over-voltage and short-circuit events.

Steady output during long calls

Rated at 2.16Wh, the cell maintains a stable voltage curve across extended talk time rather than sagging after a brief burst. The protection circuit prevents deep discharge when the handset sits off the base for days. One-year battery-pack coverage backs the expected cycle life.

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

Questions about this item

How long will the 600mAh 3.6V Ni-MH pack last on a single charge in a BT Freestyle 100 handset?

The 2.16 Wh cell is built to the original equipment specification, so talk and standby times match the factory rating for the Freestyle 100.

Does the 87.7 g battery pack run warm or draw extra current during all-day standby on a Freestyle 90?

The replacement uses the same 3.6 V 600 mAh chemistry and protection circuit as the original, so heat and current draw remain identical to the OEM pack.

What must I already have for this 42.45 × 29.77 × 14.37 mm pack to work in my BT Freestyle 70?

You need a BT Freestyle 70 handset with its original battery compartment and charging cradle; the pack is a direct drop-in replacement.

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