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In a battery electric vehicle (BEV), the state of charge indicates the remaining energy in the battery pack. [4] It is the equivalent of a fuel gauge.. The state of charge can help to reduce electrical car's owners' anxiety when they are waiting in the line or stay at home since it will reflect the progress of charging and let owners know when it will be ready. [5]
While the state of charge is usually expressed using percentage points (0 % = empty; 100 % = full), depth of discharge is either expressed using units of Ah (e.g. for a 50 Ah battery, 0 Ah is full and 50 Ah is empty) or percentage points (100 % is empty and 0 % is full). The capacity of a battery may also be higher than its nominal rating.
A lithium-ion or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li + ions into electronically conducting solids to store energy. In comparison with other commercial rechargeable batteries, Li-ion batteries are characterized by higher specific energy, higher energy density, higher energy efficiency, a longer cycle life, and a longer calendar life.
At the Microsoft Worldwide Partner Conference in 2011, Andrew Lees, the chief of Microsoft's mobile technologies, said that the company intended to have a single software ecosystem for PCs, smartphones, tablets, and other devices: "We won't have an ecosystem for PCs, and one for phones, and one for tablets—they'll all come together ...
Retention of charge depends in large part on the battery's leakage resistance (the higher the better), and on its physical size and charge capacity. Separators keep the two electrodes apart to slow electrical discharge while allowing the transport of ionic charge carriers that close the circuit during the passage of current . [ 35 ]
Elon Reeve Musk (/ ˈ iː l ɒ n m ʌ s k /; born June 28, 1971) is a businessman and U.S. special government employee, best known for his key roles in Tesla, Inc., SpaceX, and the Department of Government Efficiency (DOGE), and his ownership of Twitter.
Samsung Series 4 laptop. In 2014, the company announced that it was exiting the laptop market in Europe. [173] In 2015, Samsung announced a proposal for a constellation of 4600 satellites orbiting Earth at 1,400 kilometers (900 mi) altitude that could bring 200 gigabytes per month of internet data to "each of the world's 5 billion people".
Joseph Robinette Biden Jr. [b] (born November 20, 1942) is an American politician who served as the 46th president of the United States from 2021 to 2025. A member of the Democratic Party, he served as the 47th vice president from 2009 to 2017 under President Barack Obama, and represented Delaware in the U.S. Senate from 1973 to 2009.