Laptop power adapter quer 90 W 19 V 4.74 A DC 1.7 mm (KOM0795)

The quer Laptop power adapter quer 90 W 19 V 4.74 A DC 1.7 mm (KOM0795) is an AC adapter designed to supply power and recharge notebooks that require a 19 V DC input and use a 1.7 mm barrel connector. With a rated output of 90 W (19 V, 4.74 A), the adapter provides stable power for general-purpose laptops and portable devices that match these electrical and connector specifications. The unit integrates standard safety features to protect against overcurrent, overvoltage and short circuits and is intended for use at home, in the office or while travelling where the correct voltage and plug size are required.

Advantages

This adapter delivers a consistent 19 V DC output at up to 4.74 A, suitable for devices with moderate power requirements. The compact design and 1.7 mm barrel plug allow easy connection to compatible notebooks. Built-in protection circuits reduce the risk of damage to both adapter and device by responding to electrical faults. The adapter supports everyday charging and powered operation without requiring the original manufacturer’s charger, provided the voltage and plug size match.

Suitable for

• Laptops and notebooks that accept 19 V DC input and a 1.7 mm connector
• Replacing a lost or damaged original charger with matching electrical specifications
• Home and office use where a compact external power supply is needed
• Travel use when carrying a single, compatible spare adapter

Key specifications

• Output voltage: 19 V DC
• Maximum output current: 4.74 A
• Rated power: 90 W
• Connector type: 1.7 mm barrel plug
• Input: AC mains (standard household voltage range) compatible with included mains lead
• Built-in protections: overcurrent, overvoltage, short-circuit protection

How to use

Confirm that the target laptop requires 19 V DC and accepts a 1.7 mm barrel connector before connecting. With the adapter unplugged from mains, insert the 1.7 mm plug into the laptop’s power inlet. Connect the adapter to the AC mains using the appropriate mains lead and switch on power. When charging is complete or when the adapter is not in use, disconnect mains power first and then remove the plug from the laptop. Do not force the connector into the socket; ensure correct polarity and secure seating.

Usage recommendations

Use only with devices that match the adapter’s voltage and connector size. Avoid exposing the adapter to moisture, excessive heat or prolonged direct sunlight. Allow adequate ventilation during operation and do not cover the adapter. If the adapter or cable becomes damaged, discontinue use and replace it to prevent electrical hazards.