Napájací zdroj HP 20V 3,25A model 8WA51AV — náhradný napájací zdroj pre kompatibilné HP notebooky

This AC adapter for HP provides a 20V DC output at 3.25A and is designed as a replacement power supply for compatible HP laptops. It restores charging and stable power delivery for models that accept a 20V/3.25A input and uses a standard AC mains input with a DC barrel or manufacturer-specific connector depending on the laptop model. The adapter is intended for everyday use at home, in the office, or while traveling to maintain laptop operation and battery charging.

Advantages

The adapter delivers a steady 20V/3.25A output to ensure reliable charging and consistent performance under normal laptop workloads. It offers built-in protection features typical for laptop power supplies, such as overcurrent and short-circuit protection, to reduce the risk of damage to the laptop. Its compact form factor and standard AC input make it convenient to carry and use with compatible laptops in different environments.

Suitable for

• Replacing a lost or malfunctioning HP laptop power adapter that requires 20V and 3.25A
• Providing a spare power supply for home or office use
• Mobile charging while traveling, when a compact adapter is needed
• Temporary replacement during repair or battery maintenance

Key specifications

• Output voltage: 20 V DC
• Output current: 3.25 A
• Output power: 65 W (typical calculation of 20V × 3.25A)
• AC mains input: standard range for region (check local mains requirements before use)
• Connector: DC barrel or manufacturer-specific tip (model-dependent)
• Protection features: overcurrent protection, short-circuit protection, thermal protection (common safeguards in such adapters)
• Form factor: compact, lightweight external AC adapter

How to use

Ensure the adapter output specifications (20V, 3.25A) match the requirements of your laptop model before connecting. Connect the adapter to the AC mains using the included power cord, then plug the DC connector into the laptop power socket until it is seated firmly. Confirm that the laptop indicates charging or is powered on. Avoid placing the adapter on soft surfaces that may obstruct ventilation while in use and disconnect the adapter from mains when not required for extended periods.

Recommendations

Use only with laptops that specify a 20V 3.25A input to avoid compatibility issues. Inspect the connector and cable for damage before each use, and replace the adapter if you observe frayed wires, exposed conductors, or unusual heating. For travel, use an appropriate mains plug adapter or verify regional voltage compatibility.