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Rectangular Ni-MH battery pack, green wrap with white label, 42.45 by 29.77 by 14.37 mm

Estry

Estry FF643 standard battery 3.6V 600mAh

SKU CH-9Z72-FVMHA MPN FF643

A 3.6V 600mAh Ni-MH replacement battery compatible with numerous cordless phone models including FF643, FF2000H and GH3000

  • Specifications3.6
  • Battery Pack1 Year
  • Direct replacement for original specifications
  • 6V 600mAh Ni-MH chemistry delivers 2.16Wh
  • Overcharge, over-discharge, over-voltage and short-circuit protection
  • Fits FF643 FF2000H GH3000 and 20 other listed models
  • Certified to ISO9001 RoHS CE UN38.3 and MSDS

Ni-MH replacement battery

The Estry FF643 is a nickel-metal hydride battery rated at 3.6V and 600mAh. It is built to match the original specifications for the listed compatible models. Overcharge, over-discharge, over-voltage and short-circuit protection are integrated for safer operation. The pack carries ISO9001, RoHS, CE, UN38.3 and MSDS certifications.

Compatibility and fit

This cell suits owners of the FF643, FF2000H, GH3000, FF1720, GH3010, FF1741, FF2000, GH3028, FF2025, BPT37, FF1725, FF1751, FF1188, FF1775, FF1712, FF1724, FF1762, FF674, GH3012, FF2150, FF1185, FF2115, FF1765 or FF2125 who need a direct replacement. Buyers with a different model or part number should verify compatibility before ordering.

Voltage and capacity

The decisive specification is the 3.6V nominal voltage combined with 600mAh capacity, delivering 2.16Wh of energy. If the original battery requires a different voltage or a higher capacity, this pack will not be the correct choice.

Highlights

  • Direct replacement for original specifications
  • 6V 600mAh Ni-MH chemistry delivers 2.16Wh
  • Overcharge, over-discharge, over-voltage and short-circuit protection
  • Fits FF643 FF2000H GH3000 and 20 other listed models
  • Certified to ISO9001 RoHS CE UN38.3 and MSDS

Specifications

BrandNi-MH
Model600mAh
Specifications3.6
Battery Pack1 Year

Questions about this item

Does the 3.6V 600mAh Ni-MH pack run warm or draw extra power during continuous all-day use?

The 2.16 Wh cell uses Ni-MH chemistry with built-in overcharge and over-discharge protection, so it stays cool and draws only the current the device requests.

Which connector or mounting format must my handset already have to accept this 42.45 x 29.77 x 14.37 mm replacement?

It matches the original FF643 form factor and pin layout used across the listed cordless phone models, so the existing battery compartment and connector are all that is required.

Will the 87.7 g pack work reliably in an older FF1720 or GH3000 handset I want to keep using?

Yes, the manufacturer confirms direct compatibility with FF1720, GH3000 and every other model listed, so the battery fits and communicates correctly with legacy charging circuits.

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