8. Slide the new card reader into the drive bay until it snaps into position.

Figure 24. Installing the card reader

9.Reconnect the card reader cable to Front USB connector 2 on the system board. See “Locating parts on the system board” on page 77.

10.Reinstall the front bezel. See “Removing and reinstalling the front bezel” on page 80.

11.To complete the installation or replacement, go to “Completing the parts replacement” on page 113.

Replacing the battery

Attention:

Do not open your computer or attempt any repair before reading and understanding the “Important safety information” in the ThinkCentre User Guide. To obtain a copy of the ThinkCentre User Guide, go to: http://www.lenovo.com/ThinkCentreUserGuides

Your computer has a special type of memory that maintains the date, time, and configuration information for built-in features. The battery keeps this information active when you turn off the computer.

The battery normally requires no charging or maintenance throughout its life; however, no battery lasts forever. If the battery fails, the date, time, and configuration information, including passwords, are lost. An error message is displayed when you turn on the computer.

Before performing the following procedure, be sure to read and understand the information about replacing and disposing of the battery in the “Batteries” and “Lithium battery notice” sections of the ThinkCentre Safety and Warranty Guide.

To replace the battery, do the following:

1.Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer.

2.Remove the computer cover. See “Removing the computer cover” on page 79.

92ThinkCentre Hardware Maintenance Manual

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Lenovo 4495, 4471, 4466, 4498, 4480, 4485, 4474, 4496, 4477, 4497, 4476, 4499, 4473, 4468, 4479 manual Replacing the battery
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4476, 4499, 4485, 4497, 4480 specifications

Lenovo's ThinkPad series has long been synonymous with durability, performance, and enterprise-grade features, and the models 4474, 4473, 4477, 4468, and 4466 are no exception. Each of these models brings distinct characteristics and technologies tailored to meet the diverse needs of users ranging from casual consumers to business professionals.

The Lenovo 4474 model excels in portability and performance. Featuring a lightweight chassis, it is designed to be carried easily for on-the-go professionals. It is equipped with Intel’s latest processors, ensuring quick response times and efficient multitasking capabilities. The display, often a Full HD resolution, enhances the multimedia experience, making it suitable for presentations and video playback.

The Lenovo 4473 model stands out with its robust security features. It comes with a fingerprint reader and an integrated Trusted Platform Module (TPM) to provide an added layer of security for sensitive information. This focus on security makes it an excellent choice for businesses that prioritize data protection and compliance with various regulations.

The 4477 model is recognized for its exceptional battery life. With energy-efficient components and optimized power management technologies, users can expect extended productivity without the need for frequent charging. This model is perfect for users who need to work remotely or in environments where power sources are not readily available.

For those seeking a balance between versatility and performance, the Lenovo 4468 model is an appealing choice. This model supports a wide range of connectivity options, including USB-C, HDMI, and Ethernet ports, catering to various peripheral needs. Additionally, it typically features an ergonomic keyboard and a responsive touchpad, enhancing the user experience for long typing sessions.

Lastly, the Lenovo 4466 brings innovation in terms of display technology. With options for touchscreens and high-resolution displays, this model caters to creative professionals who require precise color accuracy and vivid graphics. It offers a solid performance for design tasks, video editing, and even gaming, making it a versatile option for different scenarios.

In summary, Lenovo’s models 4474, 4473, 4477, 4468, and 4466 are tailored to address specific user needs, whether it be portability, security, battery life, connectivity, or display technology. These ThinkPad series laptops continue to exemplify Lenovo's commitment to quality and innovation in the computing space.
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