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A Kastar BT-65Q lithium-ion battery and AC wall charger with foldable flat plug

Kastar

Kastar BT-65Q 5800mAh Li-Ion battery & AC charger 1-pack

SKU CH-0GS8-RM9FY

Replacement 7.4V 5800mAh Li-Ion battery with foldable-plug AC charger for Topcon total stations

  • TypeBattery & Charger
  • Pack1 Charger + 1 Battery
  • ChemicalLi-Ion
  • Capacity42.92 Wh
  • Dimensions3*2*2 Inch
  • FeaturesFoldable Flat Plug
  • 5800 mAh capacity powers Topcon total stations longer
  • 4 V lithium-ion chemistry matches BT-65Q specifications
  • AC 100-240 V input works worldwide without a converter
  • Foldable flat plug stores flat in a survey kit
  • Red LED for charging, green LED when full

Kastar BT-65Q Li-Ion battery and charger

The Kastar BT-65Q is a 7.4 V 5800 mAh lithium-ion battery paired with an AC wall charger. It supplies 42.92 Wh of capacity for Topcon survey instruments including the GTS-900, GPT-9000 and ROBOTIC series. Survey crews and field engineers who need a direct replacement for the original BT-60Q through BT-66Q packs will find the correct voltage and connector match here.

Replaces original Topcon BT-60Q to BT-66Q packs

This set substitutes the factory battery and charger used across the GTS-750, GTS-751, GPT-7500 and GPT-7000i total stations. The jump is worth it when the original pack no longer holds a full day charge or when the BC-30 wall adapter is lost or damaged. The charger accepts 100 to 240 V AC input and delivers 8.4 V 600 mA DC output, matching the original specification exactly.

Fits existing Topcon instrument bays

The battery slides into the same compartment as the BT-60Q, BT-61Q, BT-62Q, BT-65Q and BT-66Q cells used in the FC-200, FC-2200 and FC-2500 controllers. The charger’s foldable flat plug connects directly to mains sockets without a separate cable, freeing bench space and removing the need for a proprietary charging cradle. Not for users who require a multi-bay charger or a higher-capacity pack than 5800 mAh.

Highlights

  • 5800 mAh capacity powers Topcon total stations longer
  • 4 V lithium-ion chemistry matches BT-65Q specifications
  • AC 100-240 V input works worldwide without a converter
  • Foldable flat plug stores flat in a survey kit
  • Red LED for charging, green LED when full

Specifications

BrandKastar
ModelBT-65Q
Part NumberNOCAR-1B-BT65Q-C
TypeBattery & Charger
Pack1 Charger + 1 Battery
ChemicalLi-Ion
Capacity42.92 Wh
Dimensions3*2*2 Inch
FeaturesFoldable Flat Plug

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Questions about this item

Will the 3×2×2 in battery fit inside my Topcon GTS-900 total station?

The pack measures 3×2×2 in and replaces Topcon BT-60Q through BT-66Q cells used in the GTS-900 series.

What voltage should I see on the charger LED when the 5800 mAh cell is fully charged?

Green LED means standby or full charge at 8.4 V DC output; red shows charging in progress.

How often should I recharge the 7.4 V Li-Ion pack if the instrument sits unused?

Recharge every few months to keep the 42.92 Wh cell above deep-discharge level.

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