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In 2019, Lenovo introduced the Legion Y540, Y740 with the new GeForce 20 series. In 2020, Lenovo launched the Legion 5 and 7 laptops. [5] In September 2023, Lenovo introduced their new top-of-the-line flagship model, the Legion 9i, with the first-ever self-contained liquid-cooling system inside a laptop. [6]
Saying to buy it if you want great performance and battery life, but to avoid if you want better port selection or want a gaming laptop. [ 14 ] Tom Warren of The Verge considers the SL7 the best competitor to the MacBook Air, and that Microsoft has closed the gap between the two brands, and raised the bar for expectations for a Microsoft laptop.
How fast self-discharge in a battery occurs is dependent on the type of battery, state of charge, charging current, ambient temperature and other factors. [2] Primary batteries are not designed for recharging between manufacturing and use, and thus to be practical they must have much lower self-discharge rates than older types of secondary cells.
A shunt charge controller or shunt regulator diverts excess electricity to an auxiliary or "shunt" load, such as an electric water heater, when batteries are full. [7] Simple charge controllers stop charging a battery when they exceed a set high voltage level, and re-enable charging when battery voltage drops back below that level.
A laptop's battery is charged using an external power supply, which is plugged into a wall outlet. The power supply outputs a DC voltage typically in the range of 7.2—24 volts. The power supply is usually external and connected to the laptop through a DC connector cable. In most cases, it can charge the battery and power the laptop ...
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By 1990, Taiwanese companies manufactured 11% of the world's laptops. That percentage grew to 32% in 1996, 50% in 2000, 80% in 2007 and 94% in 2011. [ 7 ] [ 8 ] The Taiwanese ODMs have since lost some market share to Chinese ODMs, but still manufactured 82.3% of the world's laptops in Q2 of 2019, according to IDC.