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Small rectangular Ni-MH battery pack, green shrink wrap with white label, 30.0 by 32.0 by 10.5mm, 45.0g

Estry

Estry 3.6V 300mAh Ni-MH Battery Replacement for GP 37AAAM3BMJ

SKU CH-3ZJ7-WJMGD

Ni-MH rechargeable cell replaces GP 37AAAM3BMJ packs, delivering 3.6V and 300mAh in a 30.0 x 32.0 x 10.5mm form factor

  • Specifications3.6
  • Battery Pack1 Year
  • Exact-fit replacement for GP 37AAAM3BMJ
  • 6 V 300 mAh Ni-MH delivers 1.08 Wh runtime
  • ISO 9001, CE, RoHS and UN38.3 certified
  • Overcharge, over-discharge, over-voltage and short-circuit protection
  • Compact 30.0 x 32.0 x 10.5 mm, 45.0 g pack

Direct replacement for GP 37AAAM3BMJ

This Estry Ni-MH pack matches the original 3.6V 300mAh specification and is certified to ISO9001, RoHS, CE, UN38.3 and MSDS. It delivers 1.08Wh in a 30.0 x 32.0 x 10.5mm case weighing 45.0g. Built-in protection guards against overcharge, over-discharge, over-voltage and short circuit.

Installation is a direct swap

Remove the old pack and connect the new one using the existing leads; no soldering or adapter is required when the part number matches 37AAAM3BMJ. The main risk is ordering the wrong code, so verify the model number on the original battery before purchase. Polarity must be observed to avoid damage.

Ni-MH chemistry limits

Capacity is fixed at 300mAh, so run-time suits only low-drain devices designed for this pack. Self-discharge is higher than lithium types and the cell voltage drops steadily under load. The pack is not rechargeable via USB and cannot be used in devices that require a different voltage or form factor.

Highlights

  • Exact-fit replacement for GP 37AAAM3BMJ
  • 6 V 300 mAh Ni-MH delivers 1.08 Wh runtime
  • ISO 9001, CE, RoHS and UN38.3 certified
  • Overcharge, over-discharge, over-voltage and short-circuit protection
  • Compact 30.0 x 32.0 x 10.5 mm, 45.0 g pack

Specifications

BrandNi-MH
Model300mAh
Specifications3.6
Battery Pack1 Year

Questions about this item

How can I confirm the Estry 3.6V 300mAh Ni-MH battery is working correctly after installation?

The device should power on and hold a charge. This pack delivers 3.6V and 300mAh (1.08Wh) with overcharge, over-discharge, over-voltage and short-circuit protection for safe operation.

What is included with the Estry 3.6V 300mAh Ni-MH battery and what must be purchased separately?

The box contains the replacement battery pack measuring 30.0 x 32.0 x 10.5mm and weighing 45.0g. No charger, cables or installation tools are included.

Which battery version should I choose to replace a GP 37AAAM3BMJ?

Select this Estry Ni-MH pack rated at 3.6V and 300mAh. It is built to the exact specifications of the original GP 37AAAM3BMJ and carries ISO9001, RoHS, CE, UN38.3 and MSDS certifications.

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