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Rectangular Ni-MH battery pack, green wrap with white label, 50.79 by 42.4 by 14.23 mm

Estry

Estry 43-3805 3.6V 700mAh Ni-MH standard battery

SKU CH-3GDK-JSZ7Q MPN 43-3805

3.6 V 700 mAh Ni-MH replacement battery fits multiple cordless phone models with overcharge and short-circuit protection

  • Battery pack size1 Year
  • Details3.6
  • Exact-fit replacement for Radio Shack 43-3805 cordless phones
  • 6 V 700 mAh Ni-MH chemistry delivers 2.52 Wh runtime
  • Built-in overcharge, over-discharge and short-circuit protection
  • Certified to ISO 9001, RoHS, CE, UN38.3 and MSDS standards
  • Compact 50.79 × 42.4 × 14.23 mm pack weighs 114.3 g

Replacement Ni-MH battery for cordless phones

The Estry 43-3805 is a 3.6V 700mAh nickel-metal hydride pack built to match the original specifications for a wide range of Radio Shack and compatible handsets. It delivers 2.52Wh of energy and includes overcharge, over-discharge, over-voltage and short-circuit protection for safe, durable operation.

Steady discharge for long talk time

Ni-MH chemistry provides a stable voltage curve during extended calls rather than a rapid drop-off after a short burst. The pack is certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards, confirming consistent manufacturing quality and compliance with transport regulations.

Verify the exact model

Check the label on your existing battery or handset against the supported model list such as 43-3805, 43-1087, TAD-725, 23-193, TAD-3812, 43-3530, ET-599, 43-1703, 43-3501 and TAD-3814, or part numbers P-P504, KX-A36, P-P508, TYPE 1, HHR-P505, KX-TCA14, TYPE 21, P-P510, RCT-3A-C1 and P-P501. Buyers whose handset uses a different voltage, capacity or connector will need a different pack.

How it compares

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

Price $13.99
Pricier than about 63% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameNi-MH
Model name700 mAh
In the box
Battery pack size1 Year

Questions about this item

Does the 3.6 V 700 mAh Ni-MH pack generate noticeable heat when the handset stays on its charger all day?

The pack uses standard Ni-MH chemistry with over-charge and over-voltage protection, so normal trickle charging produces only slight warmth.

What must the buyer already own for this replacement to function?

A cordless phone or device that accepts a 3.6 V Ni-MH pack with the original part numbers listed such as 43-3805, 43-1087 or HHR-P505.

Will the 50.79 x 42.4 x 14.23 mm pack fit the same battery compartment as the original Radio Shack 43-3805?

Dimensions match the OEM specification, so it seats in the same compartment used by models like 23-193, TAD-3812 and KX-TCA14.

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