https://batteryuniversity.com/article/bu-808c-coulombic-and-energy-efficiency-with-the-battery
https://www.powertechsystems.eu/home/tech-corner/lithium-ion-battery-advantages/
https://ru.wikipedia.org/wiki/%D0%92%D1%8B%D1%85%D0%BE%D0%B4_%D0%BF%D0%BE_%D1%82%D0%BE%D0%BA%D1%83