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Rectangular Ni-MH battery pack 45.6 by 31.3 by 10.6 mm, matte finish, 3.6 V 700 mAh

Estry

Estry M6163 standard battery 3.6V 700mAh Ni-MH

SKU CH-10WF-6EV40 MPN M6163

Ni-MH replacement battery delivering 3.6 V and 700 mAh for Fisher M6163, M7949, J2457 and J2458 models

  • Specifications3.6
  • Battery Pack1 Year
  • Drop-in replacement for Fisher M6163 M7949 J2457 J2458
  • 6 V 700 mAh Ni-MH chemistry delivers 2.52 Wh runtime
  • Compact 45.6 x 31.3 x 10.6 mm form factor fits original bay
  • Built-in overcharge over-discharge over-voltage and short-circuit protection
  • Certified to ISO9001 RoHS CE UN38.3 and MSDS standards

Direct replacement for Fisher devices

The Estry M6163 is a 3.6V 700mAh Ni-MH battery built to match the original specifications for Fisher models M6163, M7949, J2457 and J2458. It suits users who need a like-for-like power source for these specific units. Buyers with different model numbers or voltage requirements cannot use this pack.

Thermal and power behaviour

Nickel-metal-hydride chemistry delivers a steady 2.52Wh output without the thermal spikes seen in higher-energy cells. Normal operation stays within safe temperature limits and the integrated protection circuit guards against overcharge, over-discharge, over-voltage and short-circuit events. No active cooling or special ventilation is required.

Certified safety and ready fit

The cell carries ISO9001, RoHS, CE, UN38.3 and MSDS certifications confirming toxic-free materials and transport compliance. At 45.6 x 31.3 x 10.6mm and 61.0g it slides into the existing battery compartment with no adapters or firmware updates needed. One-year warranty covers manufacturing defects only.

Highlights

  • Drop-in replacement for Fisher M6163 M7949 J2457 J2458
  • 6 V 700 mAh Ni-MH chemistry delivers 2.52 Wh runtime
  • Compact 45.6 x 31.3 x 10.6 mm form factor fits original bay
  • Built-in overcharge over-discharge over-voltage and short-circuit protection
  • Certified to ISO9001 RoHS CE UN38.3 and MSDS standards

Specifications

BrandNi-MH
Model700mAh
Specifications3.6
Battery Pack1 Year

Questions about this item

How do I install the Estry M6163 battery and what step is often missed?

Align the connector with the device socket, press firmly until it clicks, then secure the battery cover screws; the step often missed is verifying the polarity markings match before applying force.

What maintenance or replacement will the Estry M6163 Ni-MH 700mAh pack need later?

Expect gradual capacity loss after several hundred charge cycles; plan to replace the pack when runtime drops below your needs, typically after one to two years of daily use.

What limit appears first during sustained use of this 3.6V 2.52Wh battery?

The 700mAh capacity ceiling is reached first, causing voltage to sag under continuous load and ending the usable runtime before thermal limits become a factor.

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