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Three rectangular Ni-MH walkie-talkie batteries with silver contacts, 1.75 x 1.2 x .4 inches each

Kastar

Kastar BT-1028 3-Pack Ni-MH 1000mAh 3.6V Walkie-Talkie Battery

SKU CH-Y86E-JES1A

Three-pack of 3.6 V 1000 mAh Ni-MH batteries compatible with Uniden GMR3040 and GMR2638 walkie-talkies

  • Total capacity3.6 Wh
  • Pack contents3 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery
  • Product dimensions3 × 2 × 3 in
  • Key featuresHigh Capacity and Manufacture Price.
  • 3-pack delivers extended talk time with 1000 mAh Ni-MH cells
  • 1200 charge cycles supported by mix-protection cathode additive
  • Low self-discharge design holds power longer during storage
  • Eco-friendly Ni-MH chemistry contains no Hg Cd or Pb
  • Fits Uniden GMR3040 GMR2638 walkie-talkies replacing BT-1028 58037235E

Compatible Walkie-Talkie Models

This three-pack of Kastar BT-1028 batteries fits Uniden GMR3040-3CK, GMR3040-2CK and GMR2638-2CK two-way radios. They replace the original BT-1028 and 58037235E cells. The Ni-MH chemistry delivers 3.6V and 1000mAh capacity for extended talk time.

Check Connector and Voltage Before Ordering

Verify that your radio uses the BT-1028 form factor and requires a 3.6V Ni-MH pack. The replacement cells measure 44.5 x 30.5 x 10.16mm, so confirm the battery compartment accommodates these dimensions. Ensure the device charges Ni-MH chemistry correctly.

Thermals Noise and Power Draw

Ni-MH cells run cool during normal transmit and receive cycles and produce no audible noise. Low self-discharge construction keeps stored energy available for longer periods between charges. The mix-protection additive supports up to 1200 charge-discharge cycles while the steel shell guards against overpressure.

How it compares

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

Price $17.99
Typical for this category: the median of 5,900 items is $17.99.

Specifications

Product
Brand nameKastar
Model nameBT-1028
Part numberMH-3B-BT1028-A
Total capacity3.6 Wh
Product typeBattery
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 3 in
In the box
Pack contents3 Batteries

Other versions of this model

5 more in the same range

Questions about this item

Does the pack include three batteries and a charger, or only the cells?

The pack contains three Ni-MH 1000 mAh 3.6 V BT-1028 cells; no charger is included.

Should I pick the 1000 mAh version or a higher-capacity alternative for my Uniden GMR3040-2CK?

This listing supplies the 1000 mAh BT-1028 model that matches the original Uniden part; no other capacity is offered here.

How long will the 1000 mAh rating actually run my GMR3040-3CK walkie-talkie?

At 1000 mAh and 3.6 V the pack delivers 3.6 Wh; real talk time depends on transmit power and duty cycle.

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