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Blue rectangular Ni-MH battery pack 68.6 by 68.2 by 32 mm

Centenex Electronics

Centenex Electronics DS-CS-TES350SL GPS Battery 3.5 Ah Ni-MH Blue

SKU CH-TTAQ-FR542

Ni-MH replacement battery delivers 8.4 V and 3.5 Ah for Testo 350-series flue gas analysers

  • TypeGPS Batteries
  • Ni-MH chemistry delivers reliable power for flue gas analysers
  • 5 Ah capacity supports extended field measurements
  • 4 V output matches original Testo 350-series specifications
  • Blue housing allows quick visual identification in tool kits
  • Compact 68.60 x 68.20 x 32.00 mm form factor fits analyser battery compartments

Replacement battery for Testo flue-gas analysers

This nickel-metal-hydride pack replaces the original 0515 0098 cell in Testo 350, 350 Plus, 350-S and 350-XL instruments. It supplies 8.4 V and 3.5 Ah for portable emissions testing. The blue housing matches the OEM colour code.

Direct-fit design keeps the analyser sealed

The pack slides into the existing battery bay without adapters or wiring changes. Its 68.60 x 68.20 x 32.00 mm footprint aligns with the factory latch points. Technicians can swap cells on site and return to measurements immediately.

Ni-MH chemistry limits runtime and charge speed

Capacity drops noticeably in freezing conditions, so cold-weather tests need a spare pack. Self-discharge is higher than lithium alternatives, requiring a top-up before each job. The analyser’s built-in charger governs current, so fast-charge rates are not possible.

Highlights

  • Ni-MH chemistry delivers reliable power for flue gas analysers
  • 5 Ah capacity supports extended field measurements
  • 4 V output matches original Testo 350-series specifications
  • Blue housing allows quick visual identification in tool kits
  • Compact 68.60 x 68.20 x 32.00 mm form factor fits analyser battery compartments

Specifications

BrandCentenex Electronics
ModelDS-CS-TES350SL
TypeGPS Batteries

Questions about this item

When will the 3.5 Ah Ni-MH pack need replacing?

Ni-MH cells lose capacity after repeated full cycles; plan on a new pack when run-time falls below useful levels for your 350-series analyser.

What stops the 8.4 V 3500 mAh battery during a long test?

The 29.40 Wh capacity is the hard limit; once the charge is spent the analyser shuts down until the pack is recharged.

Does the blue 68.60 x 68.20 x 32.00 mm pack get hot or noisy in all-day use?

Ni-MH chemistry runs silently and stays warm rather than hot; no fan or moving parts means zero noise during continuous operation.

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