HP Elite Folio 13.5 User Guide - Page 37

Using HP Fast Charge The HP Fast Charge feature allows you to quickly charge your computer battery. Charging time might vary by ±10%. When the remaining battery charge is between 0 and 50%, the battery charges to 90% of full capacity in no more than 90 minutes. To use HP Fast Charge, shut down your computer, and then connect the AC adapter to your computer and to external power. Displaying battery charge To view the percentage of remaining battery charge, place the mouse pointer over the Power icon. Conserving battery power Follow these steps to conserve battery power and maximize battery life. ● Lower the brightness of the display. ● Turn off wireless devices when you are not using them. ● Disconnect unused external devices that are not plugged into an external power source, such as an external hard drive connected to a USB port. ● Stop, disable, or remove any external media cards that you are not using. ● Before you leave your work, initiate Sleep or shut down the computer. Identifying low battery levels When a battery that is the sole power source for the computer reaches a low or critical battery level, the computer warns you in one of several ways. ● The battery light indicates a low or critical battery level. - or - ● The Power icon shows a low or critical battery notification. NOTE: For additional information about the Power icon, see Using the Power icon and Power Options on page 28. The computer takes the following actions for a critical battery level: ● If the computer is in the Sleep state, the computer remains briefly in the Sleep state and then shuts down and loses any unsaved information. Resolving a low battery level You can quickly resolve low battery level conditions. Resolving a low battery level when external power is available Connect one of the following to the computer and to external power. ● AC adapter ● Optional docking device or expansion product ● Optional power adapter purchased as an accessory from HP Running on battery power 29