Leaving a laptop plugged in when the battery is already fully charged may degrade the battery, resulting in a shorter lifespan. It may also lead to battery swelling due to internal gas buildup caused by oxidation, potentially warping or damaging the laptop. ASUS Battery Health Charging technology allows you to set the state of charge to 60%, 80% or 100%, prolonging battery lifespan and reducing the chance of battery swelling. The ASUS VivoBook 14 features a lithium-polymer battery that has 3x the lifespan of standard lithium-ion batteries. A USB 3.1 port with a reversible USB Type-C connector makes connecting devices quick and easy. USB 3.1 provides data transfer speeds as fast as 5 Gbps - up to 10x faster than USB 2.0 connections! The ASUS VivoBook 14 also features HDMI and VGA ports, as well as a 3-in-1 SD/SDHC/SDXC card reader for hassle-free compatibility with a wide range of peripherals, displays and projectors.