In order to keep the computer at full battery life,
you can set up Smart Charge according to your needs.
When the remaining battery capacity is at 50%, 40% or 30%,
the charging function will stop supplying power to your device (cell phone, tablet, mobile power etc).
*For the U2442 series, when the remaining battery capacity is at 10%,
the USB port will stop charging your device (cell phone, tablet, mobile power etc).