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Rectangular Ni-MH battery pack green shrink wrap label 50.9 by 45.9 by 25.1 mm

Estry

Estry 2500mAh 3.6V Ni-MH Battery for Fluke 1521 1522 140005 1650740

SKU CH-XDEH-02T94

Ni-MH replacement battery rated 3.6 V and 2500 mAh for Fluke 1521, 1522 and Testpath 140005 thermometers

  • Battery pack size1 Year
  • Details3.6
  • Direct replacement for Fluke 1521 and 1522 thermometers
  • 2500mAh Ni-MH cells deliver 9.0Wh runtime
  • Built-in overcharge and short-circuit protection
  • Certified to ISO9001, RoHS, CE and UN38.3 standards
  • Compact 50.9 x 45.9 x 25.1mm pack weighs 184.0g

Replacement battery for Fluke thermometers

This Estry Ni-MH pack replaces the original power source in Fluke 1521 and 1522 Testpath thermometers. It matches the factory part number 1650740 and the Testpath 140005 reference so the instrument recognises it immediately. The cell is supplied new and carries ISO9001, RoHS, CE, UN38.3 and MSDS certifications for regulated environments.

2500 mAh capacity and 9.0 Wh energy

The 3.6 V pack delivers 2500 mAh, giving roughly 9.0 Wh of usable energy for extended field sessions. Integrated protection guards against over-charge, over-discharge, over-voltage and short-circuit events to preserve cycle life. Runtime scales with the thermometer's sampling rate and display brightness; very high logging intervals will deplete the pack faster.

Fits the instrument battery compartment directly

Physical dimensions of 50.9 x 45.9 x 25.1 mm and a mass of 184.0 g match the OEM pack so the battery door closes without modification. No soldering or adapter cables are required; the pack drops into the existing cavity and connects through the standard contacts. Builders who need a higher-capacity chemistry or a different voltage platform cannot use this model.

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 nameNi-MH
Model name2,500 mAh
In the box
Battery pack size1 Year

Questions about this item

Will this 3.6V Ni-MH pack fit the Fluke 1521 thermometer I already own?

Yes, the battery is listed as compatible with the Fluke 1521 and 1522 thermometers as well as the Testpath 140005, matching part number 1650740.

How can I confirm the replacement is delivering the rated 2500mAh after I install it?

Charge the pack fully, then run the thermometer through a typical duty cycle; the operating time should match the original 9.0Wh rating if the cells are performing to spec.

Does the box include only the 50.9 x 45.9 x 25.1mm battery or are there extra items I must buy separately?

The package contains the 184.0g Ni-MH battery pack itself; no charger, cables or mounting hardware are included.

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