We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Four lithium-ion batteries and a compact USB charger with LCD screen

Kastar

Kastar BT-65Q 4-pack battery & LTD2 USB charger for Topcon survey instruments

SKU CH-M9DC-V0AVQ

Four 7.4 V 5800 mAh lithium-ion batteries with a USB-powered LCD charger that handles three cells at once for Topcon total stations

  • Total capacity42.92 Wh
  • Pack contents1 Charger + 4 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
  • Four batteries keep total-station work going longer with 5800 mAh each
  • LCD USB charger shows charge state for every cell
  • Charges three packs at once from any 5 V USB source
  • 4 V lithium-ion chemistry matches original Topcon BT-65Q specs
  • Compatible with GTS-900, GPT-9000 and robotic instrument series

Ready-to-go power kit for Topcon total stations

This pack supplies four 7.4 V 5800 mAh lithium-ion batteries and a single LCD USB charger that can handle three cells at once. It targets survey crews who need reliable field power for compatible Topcon instruments without carrying bulky mains adapters.

Check your instrument and existing charger first

Verify that your total station appears in the supported list such as GTS-750, GTS-751, GPT-7500, GTS-900, GTS-900A, GPT-9000, GPT-9000A or the FC series controllers. Confirm you are replacing BT-60Q, BT-61Q, BT-62Q, BT-65Q, BT-66Q or GMS-2 cells and that your current charger is a BC-30, BC-30D or BT-30.

Charger runs from any 5 V 2 A USB source

The LTD2 unit accepts power from a wall adapter, vehicle socket or laptop via the included Micro USB cable and delivers 8.4 V 0.5 A to each of its three bays. An onboard LCD shows individual charge status and remaining capacity so you can rotate batteries through the day without guessing.

How it compares

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

Price $87.99
Pricier than about 90% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameBT-65Q
Part numberCH-LTD2-4B-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 + 4 Batteries

Questions about this item

Does the package include four batteries and the LTD2 charger, or must anything be purchased separately?

The pack contains one LTD2 USB charger and four BT-65Q lithium-ion batteries; no extra items are required.

Should I choose the 5800 mAh BT-65Q pack or a different capacity for my GTS-900A?

All listed Topcon models — including the GTS-900A — use the same 7.4 V, 5800 mAh BT-65Q battery, so this single capacity fits every compatible instrument.

What does the 42.92 Wh rating mean for a full day of surveying with a GPT-9000?

At 7.4 V and 5800 mAh, the 42.92 Wh cell delivers the same energy as the original Topcon BT-65Q, powering a GPT-9000 through typical field sessions.

More in Camera Batteries, Grips & Chargers

Similar items