Rosewill Computer Case 422 Technické informace stáhnout pdf (Strana 63)

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Chapter 4 • Disassembly and Power

Tech

Tip

Keep Li-ion batteries cool

Li-ion batteries last longer if they are kept cool (not frozen). When you store an Li-ion battery,

the battery should be only 40 percent charged and placed in a refrigerator to prolong its life.

Mobile devices rely on their batteries to provide the mobility. The following tips can help

you get more time out of your batteries:

• Most people do not need a spare Li-ion battery. If you are not using an Li-ion battery

constantly, it is best not to buy a spare. The longer the spare sits unused, the shorter

the lifespan it will have.

• Buy the battery recommended by the laptop manufacturer.

• For a mobile device or smartphone, use an AC outlet rather than a USB port for faster

charging.

• If using a USB port for charging a mobile device or smartphone, unplug all unused USB

devices. Note that not all USB ports can provide a charge if the host device is in sleep

mode.

• Do not use the optical player when running on battery power.

• Turn off the wireless adapter if a wireless network is not being used. For Windows-based

devices, use the Network and Internet Control Panel. For smaller mobile devices, use

flight mode to turn off both the wireless and the cellular (3G/4G) networks. Apple iOS

devices can use Settings to access Airplane Mode. Android devices can use the Settings

option to access Flight mode through the Wireless and network option.

• In the power options, configure the mobile device for hibernate rather than standby

(covered later in the chapter).

• Save work only when necessary and turn off the autosave feature.

• Reduce the screen brightness. In Windows, use the Display Control Panel link found

within the Hardware and Sound Control Panel. In Apple iOS, us the Brightness &

Wallpaper setting; on an Android device, use the Sound and display option from the

Settings application.

• Keep the hard drive defragmented especially before running on battery power.

• Avoid using external USB devices such as flash drives or external hard drives.

• Add more RAM to reduce swapping of information from the hard drive to RAM to CPU

or to just be more efficient.

• Keep battery contacts clean with a dab of rubbing alcohol on a lint-free swab once a

month.

• Use your mobile device until the battery is drained when possible and then recharge it.

Constantly recharging the battery reduces the battery life. Most lithium batteries have a

circuit that keeps the battery from being discharged completely.

• Avoid running multiple programs. To close an application on an iOS-based device,

hold down on the icon from the home menu. On an Android-based device, use the

Applications > Manage Applications option from the Settings application.

• Disable automatic updates. In Windows, use the Windows Update link from the System

and Security Control Panel. On iOS or Android systems, disable push reports and appli-

cation notifications that make sounds or vibrations from within the Settings option.

Have the OS check less often for mail; use the Mail, Contacts, Calendars option to

change the settings.

• Avoid temperature extremes.

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Rosewill Computer Case 422 Technické informace Strana 63

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