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Three rectangular lithium-ion batteries and a compact LCD USB charger with three charging slots

Kastar

Kastar BT-65Q 3-pack battery & LTD2 USB charger 42.92 Wh 7.4 V 5800 mAh

SKU CH-4BHZ-7KC07

Three 7.4 V 5800 mAh lithium-ion batteries plus a USB LCD charger that powers up to three packs simultaneously from any 5 V source

  • Total capacity42.92 Wh
  • Pack contents1 Charger + 3 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions3 × 2 × 3 in
  • Key featuresLCD USB Dual charger, can charge 2 batteries at the same tim
  • Three 5800 mAh Li-Ion batteries deliver 42.92 Wh each for extended field sessions
  • LCD USB charger powers up to three packs simultaneously from any 5 V 2 A source
  • Intelligent display shows real-time charge status and remaining capacity per bay
  • 4 V cells replace Topcon BT-60Q, BT-61Q, BT-62Q, BT-65Q and BT-66Q packs directly
  • Micro USB input lets you recharge from wall, vehicle or laptop while on site

Survey power pack

This set provides three 7.4 V 5800 mAh lithium-ion batteries and a dual LCD USB charger that can handle two cells at once. It replaces the Topcon BT-65Q and matches the BT-60Q, BT-61Q, BT-62Q and BT-66Q packs used in GTS-900, GPT-9000 and robotic total stations. Field crews who run long traverses or robotic sessions gain spare capacity without changing battery chemistry.

Charger integration

The charger draws 5 V 2 A from any USB wall adapter, vehicle socket or computer port via the included micro-USB cable and delivers 8.4 V 0.5 A to each bay. Its LCD shows real-time capacity for both slots so operators can confirm charge state before leaving the office. No AC mains brick is required, freeing space in a survey kit that already carries a controller and radio.

Sustained operation

Each 42.92 Wh cell powers a total station through extended measurement routines while the charger replenishes two depleted packs in parallel during breaks. The third battery stays in reserve for continuous robotic tracking when swapping is impractical. Users needing more than three simultaneous spares or a charger that fills all three bays at once will need additional hardware.

How it compares

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

Price $67.99
Pricier than about 90% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameBT-65Q
Part numberCH-LTD2-3B-BT65Q-C
Total capacity42.92 Wh
Product typeBattery & Charger
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 3 in
In the box
Pack contents1 Charger + 3 Batteries

Questions about this item

How long can the three 5800 mAh batteries run a total station continuously before they need recharging?

Each 7.4 V 5800 mAh pack stores 42.92 Wh; actual run-time depends on the instrument model and workload, so the limit is the battery capacity itself.

Does the LTD2 charger get hot or noisy when charging three batteries at once all day?

The charger outputs 8.4 V at 0.5 A per slot for a total of 10 W from a 5 V 2 A USB source, with no fan mentioned, so heat and noise stay low.

What power source must I already have to run the charger in the field?

Any 5 V 2 A USB supply — wall adapter, car charger or computer port — plus the included Micro-USB cable.

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