AC Adapter Dell 90W 19.5V, model 99H58, replacement power supply for Dell laptops

The AC Adapter Dell 90W 19.5V (replacement power supply for Dell laptops) delivers up to 90 watts of power at 19.5 volts to charge and operate compatible Dell notebook computers. Designed as a direct replacement for original adapters, it supplies steady DC output for running system components and maintaining battery charge. The adapter is compact enough for transport and intended for use in home, office or mobile environments. It includes manufacturer-supported protections to reduce risk from overcurrent and short circuit when used according to device specifications.

Advantages

This 90W 19.5V adapter offers stable voltage regulation and sufficient power for mainstream Dell laptops that require similar power input. Its compact housing and integrated cable make it convenient to carry as a spare or travel unit. Built-in protection features help protect connected equipment by limiting current and responding to fault conditions. The adapter’s plug and connector dimensions match common Dell laptop inlets for straightforward, drop-in replacement without additional configuration.

Suitable for

• Charging and running Dell laptops requiring 19.5V and up to 90W power
• Use as a replacement or spare adapter for home or office
• Portable use while traveling or commuting
• Maintaining battery charge during extended work sessions

Key specifications

• Output power: 90 W
• Output voltage: 19.5 V DC
• Intended device type: portable laptop computers
• Protections: overcurrent protection and short-circuit protection (manufacturer supported)
• Form factor: external AC-to-DC adapter with integrated DC output cable

How to use

Connect the adapter to a compatible AC mains socket using the provided mains lead and plug the DC connector into the laptop’s power input jack. Ensure the laptop model accepts 19.5V and that the adapter’s power rating meets or exceeds the device’s requirement. When connected, the adapter will provide power to run the laptop and charge the internal battery. Unplug the mains lead before storing the adapter and avoid bending the output cable sharply to prolong service life.

Recommendations

Use the adapter on stable, dry surfaces and avoid exposure to liquids or extreme temperatures. Verify connector compatibility and voltage requirements before first use. If the adapter or cable shows signs of damage, discontinue use and replace with a compatible unit to prevent equipment damage.