Loading our smartphones with apps we constantly seem to be using means increased demand on their batteries and, unfortunately, chances of running out of juice. We have some special apps to suggest to us this week that can really help get a handle on battery power management. Many consider Battery Doctor among the top smartphone battery managers. Battery Doctor shows how much more life you can get out of your smartphone’s battery by closing certain apps and functions like WiFi and GPS. Users also can see how much time is left on a battery’s charge and how long it will take to fully charge a battery. The app is free for iOS…