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.
individual CELLS are connected together 'in series' to make batteries of either 12 volt (6 cells) or 24 volt (12 cells). Although a battery is called a '12 volt' battery, its voltage varies from about 12.6 volts down to. 10 volts when it is discharging and can rise to 15 or 16 volts during charging. It is very. important, however, to limit the maximum battery voltage during charging otherwise the. battery will be damaged. The battery voltage should not exceed 13.8 volts for long periods. and 14.4 volts for short periods (8 hours maximum).