AC adapter Lenovo 45W 5A11E21016, replacement power supply for compatible Lenovo laptops

The Lenovo 45W AC adapter provides mains power and battery charging for compatible Lenovo laptops. This compact replacement power supply delivers a 45-watt DC output through the manufacturer’s original-style connector, enabling steady operation and battery replenishment for everyday mobile and stationary use. It is designed as a direct-replacement external adapter for models that accept a 45W supply and the corresponding plug shape.

Advantages

The adapter offers a compact form factor that is easy to carry and store, while delivering a stable 45W output suitable for standard office and home laptop tasks. Built-in safety protections limit risks from overcurrent, overvoltage and short circuits to safeguard the laptop and battery. The adapter is compatible with laptops that accept the specified connector and power level, making it a practical replacement when the original unit is lost or damaged.

Suitable for

• Replacing a lost or faulty original Lenovo laptop adapter
• Using with compatible Lenovo laptops for everyday office work and study
• Portable charging at home, in the office or while traveling
• Keeping as a spare adapter for business trips or remote work

Key specifications

• Output power: 45 W
• Output type: DC power for laptop charging
• Compatibility: designed for Lenovo laptops that require a 45W external adapter and compatible plug
• Protections: overcurrent, overvoltage and short-circuit protection
• Form factor: compact external AC adapter for mains connection

How to use

Connect the adapter to a compatible mains outlet using the supplied mains lead, then plug the adapter’s laptop connector securely into the laptop power inlet. Ensure the connector seats fully and the laptop indicates that it is charging. When not in use, disconnect the adapter from the laptop and mains supply. Use only with devices that match the adapter’s required power and connector type.

Recommendations

Use the adapter on a flat, well-ventilated surface and avoid covering it during operation to prevent overheating. Confirm compatibility with your laptop’s power requirements before use, and replace damaged cables or connectors to maintain safe operation.