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Four rectangular lithium-ion batteries and a compact wall charger with foldable flat pins

Kastar

Kastar 4-Pack BT-65Q Battery & AC Charger 5800mAh 7.4V

SKU CH-PCM8-H9G4Y

Four 5800mAh 7.4V lithium-ion batteries with a foldable-plug AC charger compatible with Topcon total-station models

  • Total capacity42.92 Wh
  • Pack contents1 Charger + 4 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions3 × 2 × 3 in
  • Key featuresFoldable Flat Plug
  • Four batteries deliver 5800 mAh each for extended field sessions
  • 4 V lithium-ion chemistry matches original Topcon BT-65Q specifications
  • Included AC charger accepts 100-240 V input for worldwide use
  • Foldable flat plug makes the charger compact for transport
  • LED shows red while charging and green when batteries are full

Kastar 4-Pack BT-65Q Battery & Charger

This kit supplies four 7.4 V lithium-ion batteries and a foldable-plug AC wall charger for Topcon survey instruments. It replaces BT-60Q through BT-66Q cells and works with FC-200, FC-2200, FC-2500, GPT and GTS total stations. Survey crews needing multiple ready-to-swap packs will find the bundle convenient.

Capacity and headroom

Each cell stores 5800 mAh or 42.92 Wh at 7.4 V, giving extended field time between charges. The charger delivers 8.4 V at 600 mA, so a fully depleted pack needs several hours to reach the green-light indicator. Users running continuous robotic or long-range sessions should plan for overnight charging or additional packs.

Deciding specification

The charger accepts 100–240 V AC at 50–60 Hz with a foldable flat plug, making it usable worldwide without a separate adapter. If your instrument requires a different voltage or connector, this kit will not fit.

How it compares

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

Price $90.99
Pricier than about 90% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameBT-65Q
Part numberNOCAR-4B-BT65Q-B
Total capacity42.92 Wh
Product typeBattery & Charger
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 3 in
In the box
Pack contents1 Charger + 4 Batteries

Other versions of this model

5 more in the same range

Questions about this item

Will the 7.4V 5800mAh batteries work in my GTS-750 total station that originally used BT-62Q packs?

Yes, the batteries replace BT-60Q, BT-61Q, BT-62Q, BT-65Q, BT-66Q and GMS-2 packs used in the GTS-750 and other listed instruments.

How do I know the charger is charging each pack correctly?

The wall charger shows a red LED while charging and turns green when the pack reaches full charge or standby.

Does the package include the AC wall charger or only the four batteries?

The pack contains one foldable-flat-plug AC charger plus four 7.4V 5800mAh lithium-ion batteries.

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