Kastar 5-Pack Battery Replacement for AT&T 3658, 5800, 5806, 5830, 5840, 5845, 5870 RADIO SHACK 23-898, 23-272, 23272, 433520, 433521, 433524, 433525, 9601883 CS90258, GESPC615
Kastar 5-Pack Battery Replacement for AT&T 3658, 5800, 5806, 5830, 5840, 5845, 5870 RADIO SHACK 23-898, 23-272, 23272, 433520, 433521, 433524, 433525, 9601883 CS90258, GESPC615
Hero image 0 of Kastar 5-Pack Battery Replacement for AT&T 3658, 5800, 5806, 5830, 5840, 5845, 5870 RADIO SHACK 23-898, 23-272, 23272, 433520, 433521, 433524, 433525, 9601883 CS90258, GESPC615, 0 of 3

Kastar 5-Pack Battery Replacement for AT&T 3658, 5800, 5806, 5830, 5840, 5845, 5870 RADIO SHACK 23-898, 23-272, 23272, 433520, 433521, 433524, 433525, 9601883 CS90258, GESPC615

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Key item features

  • High Capacity: No longer to worry about the endurance of the batteries, Kastar high capacity battery will provide ultra strong power for your devices to performance well and operate longer.
  • Battery Specification: Battery Type: Ni-MH; Battery Voltage: 2.4V; Battery Capacity: 1600mAh; Battery Dimensions: 50.29 x 28.7 x 14.37mm (1.98" x 1.13" x 0.57").
  • Safety Assurance: Kastar add mix-protection additive to the cathode of batteries, protect the material from degradation in the progress of charge and discharge, extend lifespan up to 1200 cycles.
  • Low self-discharge: Embedded seal structure expand the space of crystal lattice, make more room for hydrogen, so Kastar batteries will holds power longer than others.
  • Environmental Protection: Ni-MH eco-friendly cell, doesn't contain Hg/Cd/Pb, makes no pollution to the environment, and using DBCK steel shell which can protect the battery against explosion due to overpressure.
Current price is $12.89
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  • Free 30-day returns

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Sold and shipped by Kastar USA IncPro Seller
4.623408126137052 stars out of 5, based on 1649 seller reviews(4.6)
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Showing 1-2 of 2 reviews

Sep 1, 2025
David
Item details
Size: 3-PACK
Sold and shipped byKastar USA Inc
5 out of 5 stars review

Verified Purchase

Great Batteries and Cost.

This is the second time purchasing these same batteries for my cordless AT%26T home phones, these batteries last about 4 to 5 years. Not bad for the price of these batteries.

Helpful?7EHFZVPHQ6W1352020357
Feb 14, 2026
JOHN
Item details
Size: 1-PACK
Sold and shipped byKastar USA Inc
5 out of 5 stars review

Verified Purchase

Great

Just what we needed for the right price.

Helpful?7EHFZVPHQ6W1352020357