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Two rectangular Ni-MH batteries, blue wrap, 1.75 by 1.2 by .4 inches

Kastar

Kastar BT-1028 2-pack Ni-MH 3.6 V 1000 mAh camera battery

SKU CH-Z3QW-PAE5W

Two-pack Ni-MH 3.6 V 1000 mAh batteries power compatible Uniden walkie-talkies and replace BT-1028 cells

  • Total capacity3.6 Wh
  • Pack contents2 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery
  • Product dimensions3 × 2 × 2 in
  • Key featuresHigh Capacity and Manufacture Price.
  • 2-pack delivers extended run-time for compatible devices
  • 1000 mAh Ni-MH cells provide 3.6 V reliable power
  • Low self-discharge design holds charge longer between uses
  • Safety additives protect cathode for up to 1200 cycles
  • Eco-friendly construction contains no Hg, Cd or Pb

Compatible Uniden Walkie-Talkie Power

This two-pack of Kastar BT-1028 batteries supplies 3.6 V 1000 mAh Ni-MH energy for Uniden GMR3040-3CK GMR3040-2CK and GMR2638-2CK two-way radios. They replace the original BT-1028 58037235E cells so users can keep a spare set charged for extended outdoor or professional use.

Chemistry Voltage Capacity Match

Each cell delivers 3.6 volts and 1000 milliampere-hours in a Ni-MH chemistry that fits the radio's charging circuit. Using a different voltage or chemistry would prevent correct charging and could damage the handset.

Low Self-Discharge Thermal Stability

The embedded seal structure reduces self-discharge so the pack holds its charge during storage. Ni-MH construction avoids the thermal runaway risk of lithium chemistries and the steel shell contains pressure if the cell is overcharged.

How it compares

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

Price $13.99
Cheaper than about 65% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameBT-1028
Part numberMH-2B-BT1028-A
Total capacity3.6 Wh
Product typeBattery
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 2 in
In the box
Pack contents2 Batteries

Other versions of this model

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Questions about this item

How long will the 1000 mAh rating last in a real walkie-talkie?

The 1000 mAh capacity at 3.6 V gives 3.6 Wh of energy, so a radio drawing 100 mA would run for roughly ten hours before needing a recharge.

What charging standard does the Ni-MH chemistry require?

These Ni-MH cells use a standard 3.6 V charge voltage and accept typical constant-current chargers designed for nickel-metal-hydride packs.

Will the 44.5 x 30.5 x 10.16 mm pack fit my Uniden GMR3040 handset?

Yes, the pack matches the original BT-1028 dimensions of 44.5 mm by 30.5 mm by 10.16 mm and is listed as compatible with the GMR3040 series.

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