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Rectangular lithium-polymer battery pack, dark casing, connector on one end

Cameron Sino Battery for Topcon GR-3, GR-5 4000mAh 7.2V

SKU CH-N8G0-28W9J

A lithium-polymer replacement battery delivering 4000 mAh at 7.2 V for Topcon GR-3 and GR-5 survey equipment

  • Battery pack size69.4 × 62.7 × 7.1
  • Battery typeLithium polymer
  • Battery capacity4,000 mAh
  • Battery voltage rating7.2 V
  • Details69.4 × 62.7 × 7.1
  • Product typeLithium polymer
  • 4000 mAh capacity powers Topcon GR-3 and GR-5 survey gear longer
  • 2 V lithium-polymer chemistry matches original voltage for direct replacement
  • ISO 9001, RoHS and CE certified for safety and compliance
  • 40 × 62.70 × 7.10 mm form factor fits original battery bay precisely
  • Overcharge, over-discharge, over-voltage and short-circuit protection extends service life

Replacement battery for Topcon GR-3 and GR-5

This lithium-polymer pack delivers 4000mAh at 7.2 volts and matches part numbers 02-850901-01 and 02-850901-02. It is built for survey and test equipment that requires the original form factor and a fully decoded chip. The unit weighs 177.6g and measures 136.94 x 54.00 x 34.70mm.

Check your device model and original part number

Verify that your instrument is a Topcon GR-3 or GR-5 and that the existing battery carries part number 02-850901-01 or 02-850901-02. Confirm the connector layout matches the replacement before fitting. A new pack reaches full performance after two or three complete charge and discharge cycles. Use only a quality charger to avoid shortening service life.

Replaces the original Topcon pack when capacity

Swap this unit in when the factory battery no longer holds sufficient charge for a full field day. The 28.80Wh rating restores the runtime the instrument had when new. The jump is worth it if the old cell shows reduced operating time or fails to complete a job without recharging. Do not use if the equipment demands a different voltage or chemistry.

How it compares

Measured against everything we stock in Disposable & Rechargeable Batteries, at today’s prices. Recalculated every night.

Price $74.99
Pricier than about 85% of the 985 comparable items (median $28.99).

Specifications

Product
Brand nameCS Cameron Sino
Model nameGR-3, GR-5
Part number02-850901-01, 02-850901-02
Product typeLithium polymer
Power
Battery typeLithium polymer
Battery capacity4,000 mAh
Battery voltage rating7.2 V
In the box
Battery pack size69.4 × 62.7 × 7.1

Questions about this item

Does the Cameron Sino battery for Topcon GR-3 and GR-5 include a charger in the box?

The package contains one lithium polymer battery pack with a fully decoded chip and shock-absorbing foam for transit protection. A charger is not included and must be sourced separately.

Which part number should I match — 02-850901-01 or 02-850901-02 — when ordering a replacement for my Topcon GR-5?

Both part numbers are listed as direct replacements for the GR-3 and GR-5; verify the number printed on your original battery and order the matching code.

What runtime can I expect from the 4000 mAh 7.2 V capacity in a Topcon GR-3 survey instrument?

The 28.80 Wh rating delivers the same voltage and capacity as the original pack, so field runtime matches the OEM specification for the GR-3 and GR-5.

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