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Small rectangular Ni-MH battery pack green label 42.57 by 30.2 by 14.43 mm

Estry

Estry CL-255 3.6V 600mAh Ni-MH standard battery

SKU CH-A9SQ-V0HT5 MPN CL-255

Ni-MH 3.6V 600mAh replacement battery compatible with Sharp CL-255, FT-5505 and CL-500 models

  • TypeBatteries
  • Battery Pack1-pack
  • Battery TypeNi-MH
  • Battery Capacity600mAh
  • Battery Voltage3.6
  • Compatible with over 20 Sharp cordless models
  • Ni-MH chemistry delivers 3.6V and 600mAh capacity
  • Built-in protection guards against overcharge and short circuit
  • Certified to ISO 9001, RoHS, CE and UN 38.3
  • Compact 42.57 x 30.2 x 14.43 mm form factor

Replacement battery for Sharp cordless phones

The Estry CL-255 is a 3.6V 600mAh Ni-MH pack built to match the original specifications for a long list of Sharp handsets including the CL-255, FT-5505 and CL-500 series. It delivers 2.16Wh of energy and includes overcharge, over-discharge, over-voltage and short-circuit protection for safe daily use. The pack measures 42.57 x 30.2 x 14.43mm and weighs 77.4g.

Upgrades worn or dead original cells

This battery replaces the Sharp UBATN0004AWZZ and CL-S16K packs when talk time drops or the handset will no longer hold a charge. The jump is worth it when the original cells have degraded after several years of service and a direct-fit Ni-MH replacement restores normal runtime without modifying the phone. It is not for users who need a higher-capacity chemistry such as lithium-ion or a different voltage platform.

Check model and part number before ordering

Verify that your handset model appears in the compatible list — examples include CL-155, CL-160, CL-200, CL-350, CL-505, CL-510, CL-540, CL-550, CL-555, FT-4255, FT-4260 and FT-4265ID — and that the original part number is UBATN0004AWZZ or CL-S16K. Confirm the battery cavity can accept the stated dimensions and that the connector polarity matches the original pack.

Highlights

  • Compatible with over 20 Sharp cordless models
  • Ni-MH chemistry delivers 3.6V and 600mAh capacity
  • Built-in protection guards against overcharge and short circuit
  • Certified to ISO 9001, RoHS, CE and UN 38.3
  • Compact 42.57 x 30.2 x 14.43 mm form factor

Specifications

BrandSharp
TypeBatteries
Battery Pack1-pack
Battery TypeNi-MH
Battery Capacity600mAh
Battery Voltage3.6

Questions about this item

Will the 42.57 × 30.2 × 14.43 mm pack fit my Sharp CL-255 battery compartment?

The pack measures 42.57 × 30.2 × 14.43 mm and weighs 77.4 g, matching the original CL-255 dimensions for a direct fit.

How do I install the replacement and what step is often missed?

Power off the device, open the battery cover, remove the old pack, insert the new 3.6 V Ni-MH pack observing the polarity markings, close the cover, then charge fully before first use — skipping the initial full charge is the common mistake.

When will the 600 mAh Ni-MH pack need replacing?

Replace the pack when run-time falls well below the original 600 mAh capacity or the battery no longer reaches a full 3.6 V charge after a complete cycle.

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