The Lenovo ThinkPad 45W AC Adapter (Slim Tip) is a compact and efficient power supply designed specifically for Lenovo laptops featuring the slim-tip power connector. Delivering 45 watts of DC output, it supports a wide AC input range of 100-240V at 50/60 Hz, making it suitable for global use with the appropriate mains cable. This adapter serves as a reliable replacement or spare for various Lenovo ThinkPad models including the 11e series, Helix (models 3697, 3698, 3700, 3701, 3702), and ThinkPad S4 series.

Its smaller form factor compared to the Lenovo 65W adapter ensures a lightweight and travel-friendly design. The slim common connector is compatible only with models equipped with this style of port and is not suitable for legacy barrel-type plugs. Designed with energy efficiency in mind, it meets Energy Star compliance, providing an environmentally responsible power solution. Package contents typically include the 45W adapter brick and a detachable mains lead tailored to regional power standards. Warranty coverage for this adapter is generally one year (12 months), depending on the seller or Lenovo warranty policies.

Key features include universal voltage compatibility, a slim-tip connector for seamless fit, durable construction, and wide compatibility with specific Lenovo ThinkPad and Helix notebooks. Ideal for users needing a trustworthy spare or replacement power source for their compatible Lenovo laptop.