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Small rectangular Ni-MH battery pack with wire connector, green label, 50.79 by 42.4 by 14.23 mm

Estry

Estry FF5000 3.6V 700mAh Ni-MH standard battery

SKU CH-93WX-WV0EN MPN FF5000

Ni-MH 3.6V 700mAh replacement battery fits Southwestern Bell cordless phones including FF5000, FF4500, BT905, FT8981, SG1700, SX2981 and TRB8000 models

  • Specifications3.6
  • Battery Pack1 Year
  • 6 V 700 mAh Ni-MH chemistry powers compatible cordless phones
  • 52 Wh capacity supports extended talk and standby time
  • Built-in protection guards against overcharge, over-discharge and short circuits
  • Replaces Southwestern Bell FF5000 BT905 FF4500 FT8981 SG1700 RC009814 SX2981 TRB8000
  • Certified to ISO9001 RoHS CE UN38.3 and MSDS standards

Replacement for Southwestern Bell handsets

This Estry FF5000 Ni-MH pack replaces the original battery in compatible Southwestern Bell cordless phones. It delivers 3.6V and 700mAh capacity with built-in protection against overcharge, over-discharge, over-voltage and short circuits. The pack measures 50.79 x 42.4 x 14.23mm and weighs 114.3g. It carries ISO9001, RoHS, CE, UN38.3 and MSDS certifications.

Chemistry and capacity define the practical limits

Ni-MH chemistry provides 2.52Wh of energy at 3.6V nominal voltage. The 700mAh rating determines talk and standby time within the handset's designed power envelope. Protection circuits prevent damage from voltage extremes but do not increase the fundamental capacity. Cycle life follows standard Ni-MH characteristics for this capacity class.

Verify the exact model number before ordering

Check the battery compartment label for one of the listed part numbers: FF5000, BT905, BBTY0623001, FF4500, FT8981, SG1700, RC009814, SX2981 or TRB8000. Confirm the connector layout and polarity match the original pack. This battery is not for devices requiring a different voltage, chemistry or physical footprint.

Highlights

  • 6 V 700 mAh Ni-MH chemistry powers compatible cordless phones
  • 52 Wh capacity supports extended talk and standby time
  • Built-in protection guards against overcharge, over-discharge and short circuits
  • Replaces Southwestern Bell FF5000 BT905 FF4500 FT8981 SG1700 RC009814 SX2981 TRB8000
  • Certified to ISO9001 RoHS CE UN38.3 and MSDS standards

Specifications

BrandNi-MH
Model700mAh
Specifications3.6
Battery Pack1 Year

Questions about this item

Which compatible model number matches my device — FF5000, BT905, BBTY0623001, FF4500, FT8981, SG1700, RC009814, SX2981 or TRB8000?

Check the label on your original battery or handset; the replacement fits any unit listed under those exact model codes.

What does the 700 mAh rating deliver in daily cordless-phone use?

It provides the same talk and standby time as the original 700 mAh pack, restoring factory runtime.

Does the 3.6 V Ni-MH chemistry limit charging in standard DECT bases?

No — the 3.6 V chemistry is the direct equivalent specified for those bases, so charging proceeds normally.

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