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Small rectangular lithium-polymer battery, matte finish, 27.5 by 26 by 5.7 mm, 32.6 g

Cameron Sino Battery for GSP 350 500 670 350mAh 1.30Wh

SKU CH-W02Z-M5DYF

Replacement lithium-polymer cell fits GSP 350, 500 and 670 headsets, delivering 350 mAh at 3.7 V

  • Total capacity350 mAh
  • Product typeAaa
  • Product weight32.6g
  • Fits GSP 350, 500 and 670 headsets
  • 350 mAh capacity delivers 1.30 Wh of energy
  • 7 V lithium-polymer cell matches original voltage
  • 5 × 26.0 × 5.7 mm size fits the battery bay
  • Built-in protection against overcharge, over-discharge and short circuit

Replacement Battery for GSP 350 500 670 Headsets

This lithium polymer cell replaces the original AHB552826TPC-2 battery in Sennheiser GSP 350, GSP 500 and GSP 670 wireless headsets. It delivers 350mAh capacity at 3.7 volts and weighs 32.6g. The pack includes a fully decoded chip that communicates with the headset exactly like the factory unit.

Capacity and Voltage Limits for Wireless Use

The 350mAh / 1.30Wh rating defines the total energy available per charge cycle, so operating time scales directly with headset power draw. Voltage is fixed at 3.7 volts; the onboard protection circuit prevents overcharge, over-discharge, over-voltage and short-circuit events. Storage above 60 Celsius or 140 Fahrenheit degrades chemistry permanently.

Installation Steps and Common Pitfalls

The battery measures 27.50 by 26.00 by 5.70 millimetres and fits the existing compartment without modification. Align the connector carefully before pressing it home — poor seating is the most frequent cause of a headset that will not power on. Allow two to three full charge-discharge cycles for the fuel gauge to calibrate. Avoid low-quality third-party chargers as they shorten service life.

How it compares

Measured against everything we stock in Replacement Phone Batteries, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 70% of the 868 comparable items (median $14.99).

Specifications

Product
Brand nameCameron sino
Model nameSennheiser GSP 670 GSP 350 GSP 500
Part numberSennheiser AHB552826TPC-2
Total capacity350 mAh
Product typeAaa
Size & build
Product weight32.6g

Questions about this item

Should I pick the GSP 350, GSP 500 or GSP 670 version?

This single battery fits all three headset models; the part number AHB552826TPC-2 covers GSP 350, GSP 500 and GSP 670.

What does the 1.30 Wh rating deliver in daily use?

At 3.7 V and 350 mAh it provides roughly 1.30 Wh of energy for the wireless headset.

What connector standard does the battery use and what does it limit?

The pack uses the original Sennheiser connector and a built-in protection circuit that guards against overcharge, over-discharge, over-voltage and short circuits.

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