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Rectangular grey battery pack with labelled side and connector end

Cameron Sino Battery for Topcon 2700mAh 7.2V

SKU CH-RP23-6H74A

Replacement 2700mAh 7.2V battery for Topcon total stations including GPT and GTS series

  • Battery pack size135.25 × 68.7 × 26.15
  • Battery capacity2,700 mAh
  • Battery voltage rating7.2 V
  • Details135.25 × 68.7 × 26.15
  • 2700 mAh capacity powers Topcon total stations longer
  • 2 V output matches original BT-32Q, BT-52Q, BT-52QA, BT-G1, TBB-2, TBB-2R specs
  • 25 × 68.70 × 26.15 mm form factor fits CS-100, GPT and GTS series battery bays
  • ISO 9001, RoHS and CE certified cells meet survey-grade quality standards
  • Fully decoded chip communicates with instrument firmware like the factory pack

Survey instrument power

This Cameron Sino replacement battery delivers 2700 mAh at 7.2 volts for a wide range of Topcon total stations and data collectors including the CS-100, CTS-3000, GPT and GTS series. It replaces original part numbers such as BT-52Q, BT-52QA, TBB-2 and 51730. The pack uses a fully decoded chip so the instrument reports charge status exactly as it does with the factory cell. Field crews can swap it in without any firmware changes.

Compact rugged pack

The housing measures 135.25 by 68.70 by 26.15 millimetres and weighs 303.4 grams, matching the original footprint so it slides into the existing battery compartment without modification. Connectors align with the stock layout, allowing a straight forward swap even in damp or dusty site conditions. ISO 9001, RoHS and CE markings confirm the cell meets recognised safety and environmental standards for daily professional use.

Direct OEM substitute

Survey teams replacing an exhausted Topcon BT-32Q, BT-G1 or similar pack regain the full 19.44 Wh capacity without upgrading to a higher-voltage platform. The jump is worth it when the original cell no longer holds a full day charge or when the instrument flags a battery error. It is not suited for instruments that require a different voltage or form factor, nor for users needing hot-swap capability beyond a single pack.

How it compares

Measured against everything we stock in Alkaline & Coin Cell Batteries, at today’s prices. Recalculated every night.

Price $32.99
Pricier than about 70% of the 190 comparable items (median $18.49).

Specifications

Product
Brand nameCameron Sino
Model nameBattery For Topcon
Part number51730, BT-32Q, BT-52Q, BT-52QA, BT-G1, TBB-2, TBB-2R
Power
Battery capacity2,700 mAh
Battery voltage rating7.2 V
In the box
Battery pack size135.25 × 68.7 × 26.15

Questions about this item

What voltage does the 2700 mAh pack deliver and what energy rating does that give?

The pack is rated at 7.2 volts and 19.44 watt-hours, matching the original Topcon specification.

Will the 135.25 x 68.70 x 26.15 mm case fit my GTS-250 total station battery compartment?

Those are the exact dimensions of the original Topcon TBB-2 pack, so it fits the GTS-250 and every other listed model without modification.

How do I install the replacement and what is the step most people miss?

Slide the pack into the compartment until the connector clicks securely; the step often missed is verifying that the connector is fully seated before closing the latch.

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