Age, use, and heat are some of the factors that affect your laptops' battery life. However, not allowing your battery to run from 100 to zero percent can confuse your battery meter and cause its capacity to decrease more quickly.

May 06, 2013 Hi I have a Dell xPS 15 LS502 with core i7 processor and windows 7. It is just over a year old. Recently I find that the computer dies instantly when the. Play Eagle Eye Brain Game there. I have a Dell XPS 15 L502z laptop and when I first got it, I charged the battery to 100% and then rebooted and entered the BIOS and then let it drain the battery to zero. I can see there are Dell tools to do the job, for example AUTOLRN.EXE. Dell's description: This utility is used to maintain optimal battery gauge accuracy on the Dell.

In order to ensure that your battery is in top shape, you should calibrate it on a regular basis. Some laptops come with a utility that helps you automatically calibrate your battery. But in cases where there is none, here's how you calibrate your Windows laptop manually. First, charge your battery up to 100% and let it rest for two hours but leaving the laptop plugged in.