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
Small rectangular Ni-MH battery pack with green shrink wrap and wire leads

Estry

Estry 433590 3.6V 700mAh standard battery

SKU CH-40A4-28009 MPN 433590

Ni-MH 3.6 V 700 mAh replacement pack for Radio Shack 433590, 239104, 43-3590, 9602112 and 960-2112 models

  • Specifications3.6
  • Battery Pack1 Year
  • Exact-fit replacement for Radio Shack 433590
  • 6V 700mAh Ni-MH delivers 2.52Wh capacity
  • Built-in overcharge, over-discharge and short-circuit protection
  • Certified to ISO9001, RoHS, CE and UN38.3 standards
  • Compact 45.6 x 31.3 x 10.6 mm pack weighs 61.0g

Replacement battery for Radio Shack handsets

The Estry 433590 is a 3.6V 700mAh nickel-metal hydride pack built to match the original Radio Shack 433590 239104 43-3590 9602112 960-2112 specifications. It suits owners of those cordless phones who need a direct voltage and capacity match.

Straightforward two-wire swap

Installation is a simple connector exchange inside the handset battery compartment; no soldering or tools are required. The only common issue is reversed polarity if the plug is forced in the wrong orientation, so align the keyed connector before pressing.

Verify model and part number first

Check the label on your existing pack for the exact model numbers 433590 239104 43-3590 9602112 960-2112 before ordering. Confirm the physical dimensions 45.6 x 31.3 x 10.6mm fit your handset cavity and that the connector layout matches the original.

Highlights

  • Exact-fit replacement for Radio Shack 433590
  • 6V 700mAh Ni-MH delivers 2.52Wh capacity
  • Built-in overcharge, over-discharge and short-circuit protection
  • Certified to ISO9001, RoHS, CE and UN38.3 standards
  • Compact 45.6 x 31.3 x 10.6 mm pack weighs 61.0g

Specifications

BrandNi-MH
Model700mAh
Specifications3.6
Battery Pack1 Year

Questions about this item

How can I verify the Estry 433590 battery is working correctly after installation?

After fitting the 3.6 V 700 mAh pack the device should power on and hold a charge for its normal run-time; the pack measures 45.6 × 31.3 × 10.6 mm and weighs 61.0 g, matching the original form factor.

What comes in the box and is anything else required?

The box contains one Estry 433590 Ni-MH battery pack rated 2.52 Wh; no charger, cables or additional hardware are included, so reuse your existing charger or purchase a compatible one separately.

Which version should I choose for my Radio Shack device?

Select the single 433590 model rated 3.6 V and 700 mAh; it replaces part numbers 239104, 43-3590, 9602112 and 960-2112, so match any of those codes on your old pack.

Also in this aisle

People compared these

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