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Three AA Ni-MH cells in a flat pack, 50.9 by 42.2 by 14.6 mm, green shrink wrap with white label

Estry

Estry standard battery AA x 3 3.6V 2000mAh 7.2Wh

SKU CH-9N8N-ZT2RE

Ni-MH 3.6V 2000mAh 7.2Wh AA x 3 battery pack with overcharge, over-discharge, over-voltage and short-circuit protection

  • Specifications3.6
  • Battery Pack1 Year
  • Delivers 3.6V for reliable device operation
  • 2000mAh capacity extends usage between charges
  • 2Wh energy rating supports consistent performance
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards
  • Compact 50.9 x 42.2 x 14.6mm size fits AA x 3 compartments

Replacement pack for triple-AA devices

This Estry Ni-MH battery pack replaces a three-cell AA holder in equipment that requires a single 3.6 V unit. It delivers 2000 mAh capacity and 7.2 Wh of energy in a shrink-wrapped brick measuring 50.9 x 42.2 x 14.6 mm and weighing 131.7 g. The pack carries ISO 9001, RoHS, CE, UN 38.3 and MSDS certifications.

Low self-discharge chemistry runs cool and quiet

Nickel-metal-hydride cells generate minimal heat during normal charge and discharge cycles and have no moving parts, so operation is silent. The integrated protection circuit guards against overcharge, over-discharge, over-voltage and short-circuit conditions, limiting stress on the cells and keeping power draw predictable.

Fits only gear designed for a 3.6 V three-cell pack

The pack’s fixed 3.6 V output and physical dimensions suit devices engineered for this exact voltage and form factor. It will not work in products that expect individual 1.2 V AA cells, higher-voltage configurations or a different connector layout.

Highlights

  • Delivers 3.6V for reliable device operation
  • 2000mAh capacity extends usage between charges
  • 2Wh energy rating supports consistent performance
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards
  • Compact 50.9 x 42.2 x 14.6mm size fits AA x 3 compartments

Specifications

BrandNi-MH
Model2000mAh
Specifications3.6
Battery Pack1 Year

Questions about this item

How do I install the three-cell AA pack and which polarity step is often missed?

Align the pack so the positive and negative contacts match the device terminals; the 50.9 × 42.2 × 14.6 mm size fits the AA × 3 compartment, but reversing one cell will prevent charging.

What maintenance or replacement will this Ni-MH pack need over time?

Expect gradual capacity loss after several hundred charge cycles; the 2000 mAh rating will drop, so plan to replace the pack when run-time becomes too short for your use.

What limit appears first during sustained high-drain use?

The 7.2 Wh energy capacity and internal resistance of the Ni-MH chemistry cause voltage sag and heat buildup before the 131.7 g pack reaches any thermal cutoff.

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