AC adapter Dell 90W 19.5V 3.34A model HW426 for compatible laptops

The Dell HW426 AC adapter delivers 90W output at 19.5V and 3.34A for powering and charging compatible Dell laptops. Designed as a replacement or spare power supply, this adapter provides stable voltage delivery and built‑in protection against short circuit and overload. Compact enough for travel and robust for everyday use, it supports continuous operation while maintaining battery charge and system performance.

Advantages

This 90W adapter ensures consistent power delivery for demanding tasks and charging. Integrated protection features reduce the risk of damage from electrical faults, and the adapter's compact design simplifies portability. Connector compatibility and stable voltage output contribute to reliable laptop operation across different usage scenarios.

Suitable for

• Replacing a lost or faulty original Dell laptop power adapter
• Keeping a spare adapter at home, office, or in a travel bag
• Powering a laptop during extended work sessions or presentations
• Charging the laptop battery while running power‑intensive applications

Key specifications

• Output power: 90 watts
• Output voltage: 19.5 volts
• Output current: 3.34 amperes
• Input: standard AC mains input compatible with regional power outlets (use appropriate plug or adapter)
• Protection: short circuit and overload protection
• Form factor: external compact AC adapter with attached or detachable DC cable (model dependent)

How to use

Connect the AC adapter to a compatible mains outlet using the appropriate regional plug. Attach the DC connector to the laptop's power input until it seats securely. When the adapter is powered, the laptop should indicate charging via its battery or charging LED. For best results, allow the battery to reach full charge before disconnecting for extended portable use, and avoid exposing the adapter to liquids or extreme temperatures.

Recommendations

Use the adapter with laptops that accept 19.5V, 3.34A power input and compatible connector type. To maintain longevity, unplug the adapter when not in use, avoid coiling the cable tightly, and ensure adequate ventilation around the adapter during operation.