Using the ac power adapter

The power to run your computer can come either from the lithium-ion (Li-ion) battery pack provided with it, or from ac power through the ac power adapter. While you use ac power, the battery charges automatically.

The ac power adapter that comes with your computer has two basic components:

•The transformer pack that converts ac power for use with the computer.

•The power cord that plugs into the ac outlet and into the transformer pack.

Attention: Using an improper power cord could severely damage your computer.

Connecting the ac power adapter

To connect the ac power adapter, do the following:

Note: Ensure that you perform the actions in the order in which they are listed..

1.Connect the power cord to an electrical outlet.

2.Connect the power cord to the ac power adapter.

3.Connect the ac power adapter to the power connector of the computer.

Tips for using the ac power adapter

You can check the status of your battery at any time by looking at the battery meter at the bottom of your display.

•When the ac power adapter is not in use, disconnect it from the electrical outlet.

•Do not bind the power cord tightly around the ac power adapter transformer pack when you are using ac power.

•Before you charge the battery, ensure that its temperature is at least 10°C (50°F).

•You can charge the battery when the computer is connected to ac power and the battery is installed. You need to charge the battery in any of the following situations:

–When you use a new battery.

–When the battery icon in the Windows notification area shows a low percentage of battery power remaining.

–When the battery has not been used for a long time

Charging the battery

When you check battery status and find that the percentage of power remaining is low, you need to charge your battery.

If an ac outlet is convenient, plug the ac power adapter into it, and then insert the jack into the computer. The battery will be fully charged in about six hours. This is affected by the battery size and the physical environment.

Note: To maximize the life of the battery, the computer does not start recharging the battery if the remaining power is greater than 95%.

Maximizing the battery life

To achieve the best balance between performance and power saving, adjust your power plan settings. To access power plan settings, do the following:

• Use the battery until the charge is completely depleted.

Chapter 2. Using your computer 23

20AA, T431s, 20AA000MUS, 20AA000BUS specifications

The Lenovo ThinkPad series has long been a favorite among business professionals and tech enthusiasts alike, and the Lenovo 20AA000BUS, 20AA000MUS, and T431s models exemplify the brand's commitment to innovation, performance, and rugged design. These laptops are designed for enterprise users who require reliability and versatility in their everyday tasks.

The Lenovo 20AA000BUS model features a robust Intel Core processor that ensures smooth multitasking and quick application launches. Paired with a generous amount of RAM, users can easily run demanding applications and simultaneously manage numerous browser tabs without a hitch. The full HD display provides sharp visuals and vibrant colors which enhance productivity, whether one is working on spreadsheets, watching videos, or conducting presentations.

In terms of connectivity, these models boast several USB ports, HDMI output, and an SD card reader, which facilitate seamless integration with various peripherals and external devices. With the inclusion of robust wireless options, including Wi-Fi and Bluetooth, users can stay connected throughout their workspaces and collaborate effortlessly with coworkers.

Security features are a priority for Lenovo, and the 20AA000MUS model does not disappoint. Built with a fingerprint reader and a webcam privacy shutter, users can feel confident in their data safety. Lenovo's Trusted Platform Module (TPM) technology further enhances system security by encrypting sensitive data.

The T431s, a prominent model in this lineup, prides itself on its sleek and lightweight design, making it easily portable for professionals on the go. The carbon fiber and magnesium alloy chassis not only lends to its durability but also ensures that it withstands the rigors of daily travel.

Battery life is another highlight of these models, capable of lasting through an entire workday, which is a significant advantage for users who often find themselves away from power sources. The Quick Charge feature allows for rapid recharging, ensuring that users can quickly power up their devices before heading into meetings or events.

Overall, the Lenovo 20AA000BUS, 20AA000MUS, and T431s represent a blend of advanced technology, user-centric design, and robust security features. They stand out as reliable companions for professionals seeking efficiency and performance in their computing devices. Whether in the office or on the move, these laptops meet the demanding needs of the modern workforce.

Lenovo 20AA000MUS Using the ac power adapter, Charging the battery, Maximizing the battery life

Models: 20AA T431s 20AA000MUS 20AA000BUS