Lenovo B490, B590 Using the ac power adapter, Charging the battery, Maximizing the battery life

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Using the ac power adapter

The power to run your computer can come either from the lithium-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 has two basic components:

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

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

Attention: Using an improper power cord could cause severe damage to the computer.

Connecting the ac power adapter

To connect the ac power adapter, do the following:

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

2.Connect the power cord to the transformer pack.

3.Plug the power cord into an electrical outlet.

Tips on using the ac power adapter

When using the ac power adapter, observe the following guidelines:

•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 transformer pack when it is connected to the transformer.

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

•You can charge the battery when the ac power adapter is connected to the computer and the battery is installed.

Charging the battery

When you find that the battery power is low, you need to charge the battery or replace it with a fully charged one.

You are recommended to charge the battery in any of the following situations:

•When you purchase a new battery

•If the battery status indicator starts blinking

•If the battery has not been used for a long time

Notes:

•You are advised to install the battery pack when using your computer to prevent small particles from entering the inside of your computer.

•To maximize the battery life, do not start recharging the battery immediately after it drops from full charge.

•Charge the battery at a temperature between 50 °F and 86 °F (10 °C-30 °C).

•Full charge or discharge is not required.

Maximizing the battery life

To maximize the life of a new battery or a battery that you have not used recently, do either of the following:

•Use the battery until the charge is completely depleted; that is, use the battery until the battery status indicator starts blinking orange.

12User Guide

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Contents User Guide Lenovo B490 and B590Safety, Warranty, and Setup Guide Regulatory Notice Contents Appendix D. Notices Prevent your computer from getting wet Read this firstProtect yourself from the heat that your computer generates Protect the cables from being damagedConditions that require immediate action Important safety informationProtect your computer and data when moving it Handle your computer gentlySafety guidelines Service and upgradesPlugs and outlets Power cords and power adaptersExtension cords and related devices External devices Power supply statementGeneral battery notice Rechargeable battery notice Lithium coin cell battery noticeHeat and product ventilation Electrical current safety information Laser compliance statementLiquid crystal display LCD notice Using headphones or earphonesAdditional safety information Xii User Guide Getting to know your computer Top viewLeft-side view Right-side view Front view Status indicators Bottom viewDevice access status indicator Caps Lock indicatorNumeric Lock indicator Features Power and battery status indicatorSpecifications Using your computer Frequently asked questionsConfiguring the operating system Tips on using your computerConnecting to power Putting the computer into sleep mode or shutting it downUsing the ac power adapter and the battery pack Checking the battery statusMaximizing the battery life Using the ac power adapterCharging the battery Connecting the ac power adapterHandling the battery Numeric keypad Using the touch padUsing the keyboard B590 Using the recovery buttonB490 Adjusting display brightness level Fn + Up/Down arrow Launching the camera and audio settings Fn+EscVolume controls Fn + Left/Right arrow Power conservation Fn+F1Connecting to external devices Using the media card readerSwitching the Graphics Processing Unit Using USB connectorsUsing the Nvidia Optimus Graphics feature Inserting a flash media cardHardware connection Connecting to the networkWired connection CableSoftware configuration Wireless connectionConnecting to the network User Guide Ergonomic information Accessibility and comfortYou and your computer What if you are traveling? Attaching a mechanical lock Using passwordsSecurity User Guide Recovery overview Solving recovery problems on the Windows 7 operating systemRefreshing your computer settings Recovery overview User Guide Static electricity prevention Replacing the batteryReplacing devices Replacing the backup battery Replacing devices Prerequisites for the procedure Replacing the hard disk driveReplacing a memory module User Guide Replacing devices Removing the optical drive Replacing devices User Guide Preventing problems General tips for preventing problemsBe gentle with your computer Be careful about where and how you workTaking care of your computer Carry your computer properlyHandle storage media and drives properly Take care in setting passwordsClean the cover of your computer Data protectionRegistering your computer Cleaning your computer keyboardCleaning your computer display Be sure not to modify your computerBattery and power problems Troubleshooting computer problemsTroubleshooting Battery problemsStartup problem Computer screen problemsAn ac power adapter problem Sleep and hibernation problemsProblems with drives and other storage devices Hard disk drive problemsOptical drive problems OneKey Recovery Pro program problemsPassword problem Your computer does not respond Sound problemOther problems Computer does not start from a device you wantUser Guide Appendix A. Regulatory information Wireless related informationWireless interoperability Energy Star model information Usage environment and your healthExport classification notice Electronic emission noticesIndustry Canada Class B emission compliance statement Appendix A. Regulatory information User Guide Japan recycling statements Appendix B. Weee and recycling statementsChina Weee statement Important Weee Information Recycling information for Brazil Disposing of Lenovo computer componentsBattery recycling information for the European Union User Guide China RoHS Turkish RoHS Ukraine RoHSIndia RoHS Appendix D. Notices Trademarks Index User Guide Page Part Number 1P P/N
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B490, B590, 59366616 specifications

Lenovo's B-series laptops, including the B490, B590, and B59366616, are designed to meet the needs of business professionals who seek a balance between performance, affordability, and portability. These laptops are characterized by their solid build quality, robust features, and user-friendly design, making them ideal for everyday office tasks or on-the-go productivity.

The Lenovo B490 is equipped with a 14-inch display that delivers sharp visuals, making it suitable for presentations and document editing. It offers a variety of processor options, ranging from Intel Core i3 to Core i5, enabling users to select the level of performance that best suits their requirements. The B490 comes with 4GB or 8GB of RAM, which can be upgraded for enhanced multitasking capabilities. Additionally, it offers various storage options, including traditional hard drives and solid-state drives, providing flexibility in terms of speed and storage capacity.

On the other hand, the Lenovo B590 features a larger 15.6-inch display, making it a great choice for users who prefer a bigger screen for their workflow. Like the B490, it also supports a range of Intel processors and offers ample options for RAM and storage. The keyboard is designed for comfortable typing, which is essential for extended work sessions. Advanced technologies, such as Dolby Advanced Audio, ensure an enhanced audio experience, making it suitable for webinars, video conferences, and multimedia consumption.

Both models feature Lenovo's Enhanced Experience software that optimizes boot times and provides a range of tools for system maintenance and management. They also come with various connectivity options, including USB 3.0 ports, HDMI, and Ethernet, allowing users to connect to multiple devices with ease.

Security is another cornerstone of these laptops. Features like Lenovo’s OneKey Rescue System assist in data recovery, while the option for fingerprint readers adds an additional layer of security for sensitive business information.

Overall, the Lenovo B490, B590, and B59366616 offer a reliable and efficient computing solution for professionals. Their combination of performance, affordability, and essential features makes them favorable options for those looking to enhance productivity without breaking the bank. Whether in the office or on the move, these laptops are tailored to meet the diverse needs of business users.
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