We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular Ni-MH battery pack with green shrink wrap and white label, 50.79 x 42.4 x 14.23 mm

Estry

Estry 43-687 700mAh 3.6V standard battery

SKU CH-5EA2-38WDH MPN 43-687

Ni-MH 700mAh 3.6V replacement battery compatible with Radio Shack 43-687 and multiple cordless phone models

  • Specifications3.6
  • Battery Pack1 Year
  • Drop-in replacement for multiple Radio Shack cordless phones
  • 700 mAh Ni-MH capacity delivers reliable talk time
  • 6 V output matches original equipment specification
  • Built-in overcharge, over-discharge and short-circuit protection
  • Certified to ISO 9001, RoHS, CE, UN 38.3 and MSDS standards

Direct Replacement Battery

This Estry 43-687 is a 3.6V 700mAh Ni-MH pack built to match the original specifications for cordless phones and radios. It delivers 2.52Wh of energy and includes overcharge, over-discharge, over-voltage and short-circuit protection for safe, durable operation.

Verify Model Compatibility

Before ordering, confirm that your device uses one of the listed model numbers such as 43-687, 43-3557, TAD-732 or 43-3812. Also check the battery part number against codes like P-P504, KX-A36, HHR-P505 or P-P501 to ensure the connector and polarity match your handset.

Fits Handset Battery Compartment

The pack measures 50.79 by 42.4 by 14.23mm and weighs 114.3g, designed to slide into the original battery bay without modification. It frees you from hunting for obsolete Radio Shack packs and restores talk time on compatible handsets.

Highlights

  • Drop-in replacement for multiple Radio Shack cordless phones
  • 700 mAh Ni-MH capacity delivers reliable talk time
  • 6 V output matches original equipment specification
  • Built-in overcharge, over-discharge and short-circuit protection
  • Certified to ISO 9001, RoHS, CE, UN 38.3 and MSDS standards

Specifications

BrandNi-MH
Model700mAh
Specifications3.6
Battery Pack1 Year

Questions about this item

Does the Estry 43-687 battery arrive as a single cell or does the pack include cables or a charger?

The listing shows one 3.6 V 700 mAh Ni-MH pack weighing 114.3 g and measuring 50.79 x 42.4 x 14.23 mm; no cables or charger are mentioned.

My cordless phone uses a KX-A36 pack — is this the correct replacement or should I choose a different capacity?

The Estry 43-687 is listed as a direct replacement for the KX-A36 part number and delivers the same 3.6 V 700 mAh rating, so no alternative capacity is needed.

What does the 700 mAh rating mean for actual talk time in a handset that originally used a 43-687 pack?

At 3.6 V and 700 mAh (2.52 Wh) the pack stores the same energy as the original 43-687, giving comparable talk and standby time in compatible handsets.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.