Power adapter/inverter MicroBattery MBA50139, indoor 90 W, 110–230 V input, 4.7 A output, 6.3×4.4 mm connector, black

MicroBattery MBA50139 is an indoor power adapter and inverter designed to supply stable DC power to electronic devices that use a 6.3×4.4 mm barrel connector. The unit accepts a wide AC input range of 110–230 V (50–60 Hz, minimum 100 V) and delivers up to 90 W of output power with a maximum current of 4.7 A. Encased in a compact black plastic housing measuring 60×40×80 mm, this adapter is intended for use in home and office environments where a reliable external power source is required.

Advantages

The adapter provides universal AC compatibility across common mains voltages, enabling use in different regions without a voltage converter. Its 90 W output and 4.7 A capability support devices with moderate power demands while the standard 6.3×4.4 mm barrel connector ensures compatibility with many laptops, monitors, and other consumer electronics. The compact plastic enclosure is lightweight and minimizes space usage, making it suitable for desktop setups and confined spaces.

Suitable for

• Powering laptops, portable monitors, and consumer electronics with a 6.3×4.4 mm barrel input
• Home and office devices that require up to 90 W and 4.7 A
• Replacement or spare adapter for compatible equipment with matching connector and power needs

Key specifications

• Output power: 90 W
• Output current: up to 4.7 A
• Input voltage: 110–230 V AC, 50–60 Hz (minimum 100 V)
• Connector type and size: 6.3×4.4 mm barrel
• Housing material and color: plastic, black
• Dimensions: 60 × 40 × 80 mm

How to use

Confirm that your device accepts DC input via a 6.3×4.4 mm barrel connector and that its power requirements do not exceed 90 W and 4.7 A. Connect the adapter to the mains outlet within the specified input range (110–230 V AC) and insert the barrel connector into the device’s power socket until it fits securely. Ensure proper ventilation around the adapter during operation and avoid covering the unit to prevent heat buildup. If the device does not power on, check polarity and connector compatibility before attempting continued use.

Usage recommendations

Use the adapter indoors only and avoid exposure to moisture or extreme temperatures. Select this MicroBattery adapter when the device’s connector dimensions and power ratings match those listed; if in doubt, consult the device manual or a technician to verify compatibility. Regularly inspect the connector and cable for damage and discontinue use if any damage is found.