Batteries charge an hour longer than they seem
The battery of a smartphone, tablet or laptop actually continues to charge for about an hour after the OS signals a full charge. These are the results of measurements taken by Dr. Raymond M. Soneira, armed with a voltmeter.
Although the tests were carried out on the iPad, other operating systems behave in the same way, which is quite natural, since most users are not so important, the battery is 98% or 100% charged, but the extra hour of charging usually matters.
Thus, to charge the battery to the maximum capacity, you need to leave the device in the outlet for about an hour after the smartphone or tablet reports a 100% charge.
Raymond Soneira is the founder of DisplayMate , a professor of theoretical physics at Princeton University, and a developer of an engineering program for testing and calibrating monitors. As an expert in this field, he also expresses his opinion on the new Retina Display, which is not at all Retina, and also gives other results of technical testing of iPads . In his article a bunch of interesting facts.
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Dr. Soneira says that the new iPad display consumes 2.5 times more energy than the old one. It is understandable, given the resolution of 2048 × 1536 - more than that of HDTV-TVs. Since the display usually accounts for about 50-60% of the power consumption of the entire device, in the third iPad the battery capacity is increased from 25 to 42.5 watt-hours (by 70%), and the battery life remains the same. Soneira's tests showed that at the maximum level of brightness, the third iPad can withstand 5.8 hours, while the iPad 2 lasted 7.2 hours. At an average level of brightness, they have about the same figure of 11.6 hours.
Although the tests were carried out on the iPad, other operating systems behave in the same way, which is quite natural, since most users are not so important, the battery is 98% or 100% charged, but the extra hour of charging usually matters.
Thus, to charge the battery to the maximum capacity, you need to leave the device in the outlet for about an hour after the smartphone or tablet reports a 100% charge.
Raymond Soneira is the founder of DisplayMate , a professor of theoretical physics at Princeton University, and a developer of an engineering program for testing and calibrating monitors. As an expert in this field, he also expresses his opinion on the new Retina Display, which is not at all Retina, and also gives other results of technical testing of iPads . In his article a bunch of interesting facts.
')
Dr. Soneira says that the new iPad display consumes 2.5 times more energy than the old one. It is understandable, given the resolution of 2048 × 1536 - more than that of HDTV-TVs. Since the display usually accounts for about 50-60% of the power consumption of the entire device, in the third iPad the battery capacity is increased from 25 to 42.5 watt-hours (by 70%), and the battery life remains the same. Soneira's tests showed that at the maximum level of brightness, the third iPad can withstand 5.8 hours, while the iPad 2 lasted 7.2 hours. At an average level of brightness, they have about the same figure of 11.6 hours.
Source: https://habr.com/ru/post/140588/
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