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Flat rectangular lithium battery with gold contacts, grey plastic wrap, 43.3 by 31.3 by 7.1 mm

Estry

Estry Battery Replacement for ZOOM Q4 247-9036 BT-02 3.7V 1050mAh

SKU CH-Z3JJ-GJDVE

Replacement lithium battery for ZOOM Q4 Handy Video Recorder, 3.7V 1050mAh with overcharge and short-circuit protection

  • Battery typeLithium
  • Battery capacity1,000 mAh
  • Battery voltage rating3.7
  • Product typeRechargeable Batteries
  • Direct replacement for Zoom Q4 247-9036 recorder
  • 1050 mAh lithium cell extends recording time
  • 7 V 3.89 Wh matches original power spec
  • Built-in overcharge, over-discharge and short-circuit protection
  • Certified to ISO 9001, RoHS, CE and UN 38.3 standards

Direct Replacement for Zoom Q4

This lithium-ion cell matches the original BT-02 specification for the Zoom Q4 and 247-9036 handy video recorders. It restores the recorder’s portable power so you can capture footage away from mains outlets. The 3.7V chemistry and 1050mAh rating deliver the same voltage and capacity the device expects.

Verify Model and Part Number First

Confirm your recorder is a Zoom Q4 or carries the 247-9036 identifier and that the original battery is marked BT-02. The physical envelope is 43.3 x 31.3 x 7.1mm, so the compartment must accept those dimensions. Cross-check the 3.7V and 1050mAh labels on your old cell before ordering.

Protected Cell with Certified Build

The pack weighs 44.0g and integrates over-charge, over-discharge, over-voltage and short-circuit protection circuits. It holds ISO 9001, RoHS, CE, UN 38.3 and MSDS certifications, confirming compliance with safety and transport standards. The slim 7.1mm profile slides into the recorder’s battery door without forcing the latch.

How it compares

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

Price $11.99
Pricier than about 55% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameZOOM
Product typeRechargeable Batteries
Power
Battery typeLithium
Battery capacity1,000 mAh
Battery voltage rating3.7

Questions about this item

Does the replacement battery come with a charger or only the cell itself?

The package contains the 3.7V 1050mAh lithium cell; a separate charger for the ZOOM Q4 is not included.

The listing shows 1000mAh and 1050mAh — which capacity should I expect?

The manufacturer rates this BT-02 replacement at 1050mAh and 3.89Wh.

Will the 3.89Wh rating give the same recording time as the original battery in my Q4 Handy Video Recorder?

Yes — the cell matches the original BT-02 specifications of 3.7V and 1050mAh for equivalent run-time.

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