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Estry CTA300 Ni-MH battery pack 45.6 x 31.3 x 10.6mm 61.0g

Estry

Estry CTA300 3.6V 700mAh standard battery

SKU CH-Y8N9-0TC5N MPN CTA300

Replacement Ni-MH battery delivering 3.6V and 700mAh for compatible CTA300 devices

  • Specifications3.6
  • Battery Pack1 Year
  • Ni-MH chemistry gives reliable cordless power
  • 6 V and 700 mAh deliver 2.52 Wh capacity
  • Compact 45.6 × 31.3 × 10.6 mm fits original housing
  • Weighs 61.0 g for balanced handset feel
  • ISO 9001, RoHS, CE, UN38.3 and MSDS certified

Replacement Ni-MH battery

The Estry CTA300 is a 3.6V 700mAh Ni-MH cell built to match the original battery specifications for compatible devices. It delivers 2.52Wh of energy and measures 45.6 x 31.3 x 10.6mm at 61.0g. The pack includes overcharge, over-discharge, over-voltage and short-circuit protection. It is certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards.

Who this suits and who it does not

This battery suits owners of equipment that uses the CTA300 model or part number and need a direct voltage and capacity match. Buyers whose devices require a different voltage, a higher capacity or a different chemistry should look at other options. The physical dimensions must match the available compartment space.

Deciding specification

The critical specification is the 3.6V 700mAh Ni-MH rating in the 45.6 x 31.3 x 10.6mm form factor. Only devices designed for this exact voltage, capacity and size will operate correctly with this replacement.

Highlights

  • Ni-MH chemistry gives reliable cordless power
  • 6 V and 700 mAh deliver 2.52 Wh capacity
  • Compact 45.6 × 31.3 × 10.6 mm fits original housing
  • Weighs 61.0 g for balanced handset feel
  • ISO 9001, RoHS, CE, UN38.3 and MSDS certified

Specifications

BrandNi-MH
Model700mAh
Specifications3.6
Battery Pack1 Year

Questions about this item

How do I install the Estry CTA300 battery and what step is often missed?

Insert the 45.6 x 31.3 x 10.6 mm pack into the Columbia CTA300 compartment, matching the 3.6 V polarity markings; the step often missed is securing the latch until it clicks.

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

The manufacturer rates the pack for one year of service; replace it when run-time falls noticeably below the original 2.52 Wh capacity.

What limit appears first during sustained use of the 3.6 V 700 mAh cell?

The 700 mAh capacity ceiling is reached first; continuous drain will deplete the 2.52 Wh rating before thermal or voltage protection activates.

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