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Rectangular lithium-ion battery pack 76.00 by 57.50 by 11.00 mm

FYIOGXG 5800mAh 3.85V Li-ion Battery for Casio IT-G400 HA-R21LBAT

SKU CH-3T89-BR2Z0

Replacement lithium-ion battery delivers 5800mAh at 3.85V for Casio IT-G400 barcode scanners

  • Battery pack size76 × 57.5 × 11
  • Battery typeLithium ion
  • Battery capacity5,800 mAh
  • Battery voltage rating3.85 V
  • Details76 × 57.5 × 11
  • Product typeLithium ion
  • 5800 mAh capacity extends scanner runtime
  • 85 V lithium-ion chemistry matches original spec
  • 00 x 57.50 x 11.00 mm form factor fits IT-G400 bay
  • ISO 9001, RoHS and CE certified for safety compliance
  • Fully decoded chip enables plug-and-play installation

Battery Purpose and Fit

This 5800mAh lithium-ion cell replaces the Casio HA-R21LBAT pack in the IT-G400 barcode scanner. It delivers 3.85 volts and 22.33 watt-hours in a 76.00 by 57.50 by 11.00 millimetre form factor. The unit is aimed at warehouse and logistics teams that need a direct swap for the original power source. It is not for users whose scanner requires a different voltage or physical layout.

Installation Notes

The pack uses the same connector as the factory battery, so no soldering or adapter cables are required. Many technicians report that seating the connector fully is the only step that causes trouble; a loose fit will prevent the scanner from powering on. The supplier suggests two or three full charge and discharge cycles before relying on the battery for a full shift. Buyers who cannot open the scanner's battery compartment should seek professional help.

Sustained Load Behaviour

Under continuous scanning the cell maintains its rated voltage until the protection circuit triggers at the low-end threshold. The built-in safeguards guard against overcharge, over-discharge, over-voltage and short-circuit events during long shifts. Performance stabilises after the initial conditioning cycles mentioned by the manufacturer. The battery is not suited for environments that regularly exceed 60 degrees Celsius.

How it compares

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

Price $22.99
Pricier than about 81% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameFYIOGXG
Model nameReplacement battery
Product typeLithium ion
Power
Battery typeLithium ion
Battery capacity5,800 mAh
Battery voltage rating3.85 V
In the box
Battery pack size76 × 57.5 × 11

Questions about this item

How can I confirm the FYIOGXG battery is working correctly after installing it in my Casio IT-G400?

After fitting the battery, power on the scanner and verify it holds a charge through several full scan sessions. The new cell reaches its best performance after two or three complete charge and discharge cycles.

What comes in the box with the FYIOGXG 5800mAh battery and what must I source separately?

The package contains the 3.85 V 5800 mAh lithium-ion cell measuring 76.00 x 57.50 x 11.00 mm with shock-absorbing foam. A compatible charger for the Casio IT-G400 is not included and must be obtained separately.

Which capacity version of the FYIOGXG replacement battery should I choose for the Casio IT-G400?

This model is offered in a single 5800 mAh / 22.33 Wh configuration rated at 3.85 V, matching the original HA-R21LBAT specification for the IT-G400.

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