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Small rectangular Ni-MH battery pack with green shrink wrap and wire leads

Estry

Estry MH330AAAK6HC 7.2V 300mAh Ni-MH standard battery

SKU CH-CJ0C-DR4JP MPN MH330AAAK6HC

Ni-MH 7.2V 300mAh replacement pack sized 29.71 x 31.0 x 20.76mm with overcharge, over-discharge, over-voltage and short-circuit protection

  • Battery pack size1-pack
  • Battery typeNi-MH
  • Battery capacity300 mAh
  • Battery voltage rating7.2
  • Product typeBatteries
  • Ni-MH chemistry avoids memory effect for reliable capacity retention
  • 2 V and 300 mAh match original specifications for direct replacement
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection extends service life
  • ISO 9001, RoHS, CE, UN 38.3 and MSDS certifications confirm quality and safety compliance
  • Compact 29.71 x 31.0 x 20.76 mm size fits the intended device without modification

Replacement Ni-MH battery pack

This 7.2 V nickel-metal-hydride pack replaces the original KINETIC MH330AAAK6HC cell. It delivers 300 mAh capacity and is built to the same electrical and mechanical specifications as the factory unit. Over-charge, over-discharge, over-voltage and short-circuit protection circuits are integrated for safe operation. The pack is certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards.

Suitable users and limits

The battery fits devices that require the exact MH330AAAK6HC part number and 7.2 V nominal voltage. Buyers needing a different voltage, higher capacity, or a chemistry other than Ni-MH should look at alternative power sources. Confirm the model and part number on the existing pack before ordering.

Deciding specification

The critical match is the 7.2 V 300 mAh Ni-MH rating in the MH330AAAK6HC form factor. If the original equipment specifies those exact values, this pack is the correct replacement.

How it compares

Measured against everything we stock in Household Batteries & Chargers, at today’s prices. Recalculated every night.

Price $13.99
Pricier than about 63% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameKINETIC
Product typeBatteries
Power
Battery typeNi-MH
Battery capacity300 mAh
Battery voltage rating7.2
In the box
Battery pack size1-pack

Questions about this item

What are the exact dimensions of the MH330AAAK6HC battery pack?

The pack measures 29.71 x 31.0 x 20.76 mm and weighs 113.3 g, so verify the device compartment matches these figures before ordering.

How do I install the battery without triggering the protection circuit?

Connect the leads observing correct polarity; the built-in overcharge, over-discharge, over-voltage and short-circuit protection will activate if terminals are reversed or shorted during fitting.

When should I replace this 300mAh Ni-MH pack?

Replace it when run-time drops noticeably or the pack no longer holds a full 7.2 V charge after a complete cycle, typically after several hundred charge-discharge cycles.

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