Always the perennial third in the national ratings, ABC News president Roone Arledge reformatted the program, relaunching it as World News Tonight on July 10, 1978. Reynolds, who was demoted when the network hired Reasoner, returned as lead anchor, reporting from ABC News' Washington, D.C. bureau.
The correct unit for measuring energy capacity of a battery product is called watt-hours. Watt-hours signifies that a battery can supply an amount of watts for an hour. For example, a 60 watt-hour battery can power a 60 watt light bulb for an hour. The same battery would run a 5W phone for 12 hours and power a 1W LED light bulb for 60 hours.
Conditions that can adversely affect the battery. Using the computer on constant AC power. Not discharging and recharging the battery to its extremes, as described above. Frequent use; the more you use the battery, the faster it will reach the end of its effective life. An embedded battery has a life span of more than 1,000 charge/discharge cycles. Checking the battery level The power meter indicates the current battery level. Rest the cursor over the battery/power icon on the taskbar to see the battery's present charge level. Battery-low warning When using battery power pay attention to the power meter. If you receive a battery-low warning, connect your computer to the power adapter immediately, or save your work and turn off the computer until you can charge it.