Satellite U840W series

Battery

This section explains battery types, use, recharging methods and handling.

Battery types

The computer has different types of batteries.

Battery pack

When the AC adaptor is not connected, the computer's main power source is this lithium ion battery pack, also referred to in this manual as the main battery.

Real Time Clock (RTC) battery

The Real Time Clock (RTC) battery provides power for the internal real time clock and calendar function and also maintains the system configuration while the computer is turned off. If the RTC battery becomes completely discharged, the system will lose this information and the real time clock and calendar will stop working.

You can change the Real Time Clock settings in the BIOS setup utility. To access it, press and hold the F2 key, and then turn on the computer - the BIOS setup utility will load. Please refer to Chapter 6 Troubleshooting for further information.

The RTC battery does not charge while the computer is turned off even if the AC adaptor is attached.

Care and use of the battery pack

This section provides the important safety precautions in order to handle your battery pack properly.

Refer to the enclosed Instruction Manual for Safety and Comfort for detailed precautions and handling instructions.

The computer's RTC battery is a lithium battery and should be replaced only by your dealer or by a TOSHIBA service representative. The battery can explode if not properly replaced, used, handled or disposed. Dispose of the battery as required by local ordinances or regulations.

Charge the battery pack only in an ambient temperature between 5 and 35 degrees Celsius. Otherwise, the electrolyte solution might leak, battery pack performance might deteriorate and the battery life might be shortened.

User's Manual

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Toshiba Satellite U840W Battery types, Care and use of the battery pack, Battery pack, Real Time Clock RTC battery

Satellite U840W specifications

The Toshiba Satellite U840W is a sleek and stylish ultrabook that was designed to appeal to consumers seeking portability without compromising on performance. With its innovative features and robust build, it stands out in the crowded ultrabook market.

One of the key features of the U840W is its unique 21:9 aspect ratio display. The 14-inch screen offers a resolution of 1792 x 768, making it perfect for multimedia consumption, including movies and gaming. This cinematic aspect ratio not only enhances the viewing experience but also provides extra screen real estate for multitasking, allowing users to work on documents side by side or enjoy immersive gameplay.

The design of the U840W exudes elegance, featuring a brushed aluminum chassis that gives it a premium look and feel. Weighing just under 3.5 pounds, this ultrabook is highly portable, making it ideal for students and professionals on the go. The device also boasts a backlit keyboard, ensuring that typing in low-light environments is comfortable and efficient.

Under the hood, the Toshiba Satellite U840W is powered by the third-generation Intel Core processors, which deliver impressive performance while managing power efficiency. Users can expect smooth multitasking capabilities along with the ability to run demanding applications without lag. Coupled with a solid-state drive (SSD), this ultrabook offers rapid boot times and quick access to files, creating a seamless user experience.

Another noteworthy aspect of the U840W is its extensive connectivity options. It is equipped with USB 3.0 ports, HDMI output, and a card reader, allowing for a wide range of peripheral connections and easy sharing of media files. The inclusion of Intel Wireless Display (WiDi) technology lets users wirelessly stream content to compatible displays, enhancing versatility for presentations or home entertainment scenarios.

Toshiba also implemented various technologies aimed at improving the user experience. The Audio Enhancement by DTS delivers high-quality sound, while the Eco Utility software helps users manage their power consumption, extending battery life.

In conclusion, the Toshiba Satellite U840W is a compelling choice for users looking for a versatile ultrabook that combines a distinctive display, powerful performance, and a premium design. Whether for work, play, or content consumption, the U840W successfully meets the diverse needs of modern users.