AC Adapter Lenovo 5A10J46687 20V 2.25A 45W power supply for compatible Lenovo laptops

The AC Adapter Lenovo 5A10J46687 supplies a regulated DC output of 20V at 2.25A (45W) designed for compatible Lenovo laptops. This external power supply supports charging the battery and powering the laptop during operation, and it is intended as a replacement or spare unit for systems that require this voltage and current. The adapter includes the appropriate DC plug for model-specific compatibility and a mains lead for connection to standard AC outlets.

Advantages

The adapter provides a stable 20V / 2.25A output that helps maintain consistent system performance while charging. Its compact, lightweight design makes it convenient for everyday mobile use and travel. Built-in regulation and protection circuits reduce the risk of overcurrent, overvoltage and short-circuit conditions, and the unit is compatible with laptop charging and operation when matched to the device's power requirements.

Suitable for

• Replacing a lost or damaged power adapter for laptops that require 20V and up to 2.25A input
• Portable and travel use where a compact 45W adapter is needed
• Home or office workstation setups requiring stable external power
• Spare accessory for technicians and IT departments managing compatible Lenovo systems

Key specifications

• Output voltage: 20V DC
• Output current: 2.25A
• Maximum output power: 45W
• Connector: model-specific DC plug suitable for compatible Lenovo laptops
• Input: standard AC mains voltage, compatible with common regional outlets (use appropriate mains lead)
• Protection features: built-in regulation with overcurrent and short-circuit protection
• Form factor: external inline power adapter with compact enclosure

How to use

Connect the mains lead to the adapter and plug it into a suitable AC outlet. Insert the DC plug into the laptop’s power input socket until it seats firmly. Confirm that the laptop indicates charging or AC power; if the device has a charging LED or on-screen battery indicator, verify that charging begins. To remove, disconnect the DC plug from the laptop before unplugging the mains lead. Use only with laptops that specify a 20V, up to 2.25A power input to ensure correct operation.

Usage recommendations

Ensure the adapter’s voltage and current match the laptop’s requirements before use. Avoid exposing the adapter to moisture, extreme temperatures, or direct sunlight. Allow adequate ventilation during operation and disconnect from the mains when not in use for extended periods. If the adapter becomes unusually hot, emits odors, or fails to provide power, stop using it and seek a qualified replacement or professional inspection.