I have had my surface power down twice because I have completely drained the battery. I don't get any notification about the battery getting low before it turns off. I know there is the battery icon and in the desktop, putting the cursor over the icon will show the percentage remaining, but is there anyway to get a notification that the battery is getting low? I can't believe that there is no warning message, but I don't think I accidentally turned any notification message off. Also I can't believe that tablet & phone makers haven't figured out that we like to see the percentage remaining on the battery level indicator. I've gotten add-ons for this on my last 2 phones and hopefully someone will make this for the Surface as well.