Third, the Internet giant Google, Microsoft, Apple in operating systems, browsers, smart mobile phones in the field to start the real battle for hegemony
September 8, 1998, Google in a garage in the United States was born, and after 10 years, the company has become a market value of monster 160,000,000,000 U.S. dollars, its market value […]
Sep
25
“Cloud” Google, Microsoft, Apple quickly end the pattern of the three pillars
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Sep
25
Phone lithium battery knowledge
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1, lithium-ion battery nominal voltage 3.7V (3.6V), charging cut-off voltage 4.2V (4.1V, the batteries under the brands have different designs). (Li-ion batteries is the norm: lithium ion secondary battery)
2, to the requirements of lithium-ion rechargeable laptop battery (GB/T18287 2000 norms): First of all, constant current charge, that is, a certain current, and battery charging voltage […]



