Prerequisites for the procedure

DANGER

If the backup battery is incorrectly replaced, there is danger of an explosion. The backup battery contains a small amount of harmful substances. To avoid possible injury:

•Replace only with a battery of the type recommended by Lenovo.

•Keep the battery pack away from fire.

•Do not expose it to excessive heat.

•Do not expose it to water or rain.

•Do not short-circuit it.

•Do not drop, crush, puncture, or subject to strong forces. Battery abuse or mishandling can cause the battery to overheat, which can cause gasses or flame to “vent” from the battery pack or coin cell.

To remove the backup battery, do the following:

1.Turn off the computer; then disconnect the ac power adapter and all cables from the computer. Wait three to five minutes to let the computer cool.

2.Close the computer display, and turn the computer over.

3.Remove the battery. See “Replacing the battery” on page 63.

4. Loosen the screw

1 , and then remove the cover

2.

88User Guide

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Lenovo 3259AD9, 336655U manual User Guide
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3259AD9, 336655U specifications

The Lenovo 336655U and 3259AD9 are distinguished models within Lenovo's extensive portfolio, specifically designed to cater to the needs of both professionals and everyday users. These devices combine cutting-edge technology with user-friendly features, ensuring a seamless experience for various tasks, from everyday computing to more intensive applications.

Starting with the Lenovo 336655U, this model is powered by Intel’s reputable Core i5 processor, providing a perfect blend of performance and efficiency. With a base clock speed of 2.4 GHz, the processor can handle multitasking with ease, allowing users to run multiple applications simultaneously without a hitch. The device is equipped with 8GB of RAM, which supports smooth performance for applications ranging from productivity software to creative tools. Storage is provided by a 256GB SSD, which not only offers ample space for documents, multimedia files, and programs but also ensures faster boot times and data access compared to traditional hard drives.

On the other hand, the Lenovo 3259AD9 is tailored for users who need reliable performance in a compact design. It features an AMD Ryzen 5 processor, a powerful alternative that provides exceptional performance for both demanding tasks and light usage scenarios. With integrated Radeon graphics, the device supports casual gaming and video streaming with ease. Similar to its counterpart, the 3259AD9 comes with 8GB RAM and a 256GB SSD, ensuring a speedy and efficient computing experience.

Both models prioritize connectivity, featuring multiple USB ports, HDMI output, and an Ethernet port. This ensures compatibility with various peripherals and external displays. Furthermore, the inclusion of Bluetooth technology allows for convenient wireless connections to headphones, keyboards, and mice, enhancing flexibility for users on the move.

Display quality is also a focal point in these Lenovo models. The Lenovo 336655U sports a 15.6-inch Full HD display, offering vibrant colors and sharp detail, perfect for media consumption and professional work. The Lenovo 3259AD9 boasts a similar screen size and resolution, making both devices suitable for graphic design as well as everyday tasks.

In terms of battery life, both models are designed to last through a full workday, enabling users to work efficiently without the constant need for charging. Their sleek and lightweight designs make them highly portable, catering to professionals and students alike.

In conclusion, the Lenovo 336655U and 3259AD9 stand out as reliable, efficient, and versatile machines. Whether for professional work, educational purposes, or everyday use, these models embody Lenovo’s commitment to quality and performance in the dynamic world of computing.
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