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Rectangular Ni-MH battery pack, dark plastic casing, label with model PS142K 18.0V 1500mAh

Estry

Estry PS142K 18.0V 1500mAh standard battery

SKU CH-M9W7-9V42Y MPN PS142K

Ni-MH replacement battery delivers 18.0 V and 1500 mAh for Firestorm tools

  • Specifications18
  • Battery Pack1 Year
  • 0 V 1500 mAh Ni-MH pack powers compatible Firestorm tools
  • 0 Wh capacity supports extended runtime between charges
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards
  • 6 x 78.9 x 72.2 mm form factor fits listed FS and PS models

Compatible replacement battery

The Estry PS142K is a nickel-metal hydride pack built to match the original specifications for a wide range of Firestorm power tools. It serves owners of models such as the GPC1800P, FS1800CS and FSX1800HD who need a direct replacement for part numbers including FS120B, NST2118 and FSB18.

Build quality and daily fit

The pack measures 145.6 by 78.9 by 72.2 millimetres and weighs 1030.0 grams, matching the form factor required by the listed tools. It carries ISO9001, RoHS, CE, UN38.3 and MSDS certification, and includes overcharge, over-discharge, over-voltage and short-circuit protection circuits for safer operation.

Thermals and power in use

Rated at 18.0 volts and 1500 milliampere-hours, the battery delivers 27.0 watt-hours of energy for typical cordless tool tasks. The Ni-MH chemistry and integrated protection help manage heat and current draw during normal operation, supporting consistent runtime without excessive temperature rise.

Highlights

  • 0 V 1500 mAh Ni-MH pack powers compatible Firestorm tools
  • 0 Wh capacity supports extended runtime between charges
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards
  • 6 x 78.9 x 72.2 mm form factor fits listed FS and PS models

Specifications

BrandNi-MH
Model1500mAh
Specifications18
Battery Pack1 Year

Questions about this item

What voltage and capacity does the 18.0V 1500mAh Ni-MH pack deliver, and what does that cap in practice?

The pack supplies 18.0 volts and 1500 milliampere-hours for 27.0 watt-hours, limiting run-time to that energy budget in compatible Firestorm tools.

What are the exact dimensions and weight of the PS142K battery, and will it fit my tool's bay?

It measures 145.6 by 78.9 by 72.2 millimetres and weighs 1030.0 grams; verify your tool's battery cavity matches these figures.

How do I install the replacement pack, and what step do people often miss?

Slide the pack into the tool until the latch clicks, then charge fully before first use; skipping the initial full charge is the common mistake.

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