Most laptop batteries are rated to last for 1000 charge cycles. Trying to save on charge cycles by using plugged in always is detrimental. At the end of a year, the battery life would actually drop to 1 or 2 hours. The best way to keep the battery life of the new laptop in good condition is - To not continuously use it plugged in to charger. The recommended approach is to charge fully and then use on battery - even if you are home or have access to power socket.