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Rectangular Ni-MH battery pack, light plastic shell, 50.43 by 42.54 by 14.4 mm, 90.3 g

Estry

Estry 39705 standard battery 3.6V 1200mAh

SKU CH-6RHM-DKEAJ MPN 39705

Ni-MH 3.6V 1200mAh replacement battery fits Northwestern Bell 39705, 39710, 39250, 39626, 36250, 39606 models

  • Battery pack size1 Year
  • Details3.6
  • Direct replacement for Northwestern Bell 39705 handsets
  • 6V 1200mAh Ni-MH delivers 4.32Wh runtime
  • Built-in overcharge, over-discharge and short-circuit protection
  • Certified to ISO9001, RoHS, CE and UN38.3 standards
  • Compact 50.43 x 42.54 x 14.4mm pack weighs 90.3g

Ni-MH replacement battery for cordless phones

This 3.6V 1200mAh Ni-MH pack replaces the original battery in compatible Northwestern Bell handsets. It delivers 4.32Wh of energy and measures 50.43 x 42.54 x 14.4mm at 90.3g. The cell carries ISO9001, RoHS, CE, UN38.3 and MSDS certifications. Overcharge, over-discharge, over-voltage and short-circuit protection are built in.

Suits owners of listed Northwestern Bell models.

The pack fits handsets using part numbers 39705, 39710, 39250, 39626, 36250 or 39606. Buyers with different phone models or proprietary battery shapes should look elsewhere. No charging cradle or adapter is included in the package.

3.6V 1200mAh Ni-MH chemistry determines

The voltage and capacity must match the handset's original specification for correct operation. Verify the part number on your existing battery before ordering. The physical dimensions and connector orientation also need to align with the handset's battery compartment.

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 name1,200 mAh
In the box
Battery pack size1 Year

Questions about this item

Should I choose the 1200mAh 3.6V pack or a different capacity for my handset?

The 1200mAh 3.6V Ni‑MH pack matches the original specification for the listed handsets; select this capacity to maintain the designed talk and standby times.

What does the 4.32Wh rating mean for daily cordless‑phone use?

4.32Wh is the total energy the pack stores; in a typical handset it delivers several hours of talk time and days of standby before needing a recharge.

Does the 3.6V Ni‑MH chemistry limit charging speed or require a special cradle?

The pack uses standard Ni‑MH chemistry at 3.6V and works with the original charging cradle; no proprietary charger or faster‑charge protocol is needed.

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