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Rectangular nickel-zinc battery pack with wire connector, grey plastic casing, labelled 8408 3400mAh 7.4V

Cameron Sino 8408 3400mAh 7.4V Nickel-Zinc Battery

SKU CH-90W0-V42JE

Nickel-zinc replacement battery for Smiths Capnocheck II capnograph and oximeter, 3400 mAh at 7.4 V

  • Battery pack size70.83 × 38.71 × 20.72
  • Battery typeNickel zinc
  • Battery capacity3,400 mAh
  • Battery voltage rating7.4 V
  • Details70.83 × 38.71 × 20.72
  • Product typeNickel zinc
  • Nickel-zinc chemistry gives 3400 mAh capacity for long medical-device run-time
  • 4 V output matches the original Smiths Capnocheck II specification exactly
  • 83 × 38.71 × 20.72 mm form factor fits the OEM battery bay without modification
  • ISO 9001, RoHS and CE certifications confirm regulated manufacturing quality
  • Fully decoded chip communicates with the capnograph exactly like the factory pack

Compatible Replacement Battery

The Cameron Sino 8408 is a nickel-zinc battery built to match the original specifications for the Smiths Capnocheck II Capnograph and Oximeter. It delivers 3400mAh capacity at 7.4 volts and measures 70.83 x 38.71 x 20.72 mm with a weight of 105.1 g. The pack includes a fully decoded chip so the device recognises it immediately.

Upgrade From Worn Original Cells

This unit replaces the factory battery when run-time has dropped or the pack no longer holds a charge. The jump is worth it when the monitor shows reduced operating time between charges or the original pack has reached the end of its service life. ISO9001, RoHS and CE certifications confirm the replacement meets the same safety and quality baseline as the original equipment.

Suits Biomedical Technicians And Clinicians

The battery suits biomedical technicians and clinicians who need a direct-fit power source for the Capnocheck II without soldering or adapter cables. Buyers who need a different voltage, chemistry or form factor for another monitor model should look at something else.

How it compares

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

Price $18.99
Pricier than about 75% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameCameron Sino
Model nameCapnocheck II Capnograph, Oximeter
Part number8408
Product typeNickel zinc
Power
Battery typeNickel zinc
Battery capacity3,400 mAh
Battery voltage rating7.4 V
In the box
Battery pack size70.83 × 38.71 × 20.72

Questions about this item

What are the exact dimensions of the 8408 battery so I can confirm it fits the Capnocheck II?

The pack measures 70.83 mm by 38.71 mm by 20.72 mm and weighs 105.1 g, matching the original battery's form factor.

How do I install the replacement battery in the Capnocheck II and what is the step people often miss?

Open the battery compartment, disconnect the old pack, connect the new 7.4 V 3400 mAh unit ensuring the connector seats fully, then close the cover; the most common error is leaving the connector partially seated.

After how many charge cycles will the nickel-zinc battery reach full capacity and when should I plan a replacement?

The battery delivers its rated 25.16 Wh after 2 or 3 complete charge-discharge cycles; replace it when runtime drops below your clinical requirements.

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