WHR refers to "watt-hour (Watt-hour)" A unit of measure used to denote the approximate energy of a battery. For example, WHr 4-cell's battery indicates that 4 cores can provide 1 hours of 29W power or 2 hours of 14.5W of electricity. The 85WHr 9-cell indicates that 9 cores can provide 85W per hour or 2 hours of 42.5W.
What's watt?
Symbol: W
The power units of the International unit of units. Watt is defined as the rate of 1 joules per second (1j/s), that is, the speed at which energy is converted, used, or dissipated (measured in joule).
In the electrical unit of units, the Volt is ampere (VXA).
In daily life more commonly used KW as unit, 1-kilowatt = 1000 watts.
Unit conversion: Watt was named after the British scientist James Watt, who made a significant contribution to the development of the steam engine. The name of this unit was first adopted by the 2nd meeting of the British Association for the Advancement of Science in 1889. In 1960, the 11th meeting of the International Metrology Conference adopted Watt as the unit of power in the SI units. People often use power units multiplied by time units to represent energy. At 1-kilowatt, for example, a power dissipation device of 1-kilowatt consumes 1 hours of energy, equal to 3.6 mj.
The commonly used formulae are w=uit, W=PXT