4 ms·Ever as a techie I don't close apps very often. Is there a reason you do?by k-mcgrady 14y agoEver as a techie I don't close apps very often. Is there a reason you do?bluedino 14y ago(at least it seems like) Maps kills my battery if I leave it open - iPhone 4gte910h 14y agoThings that show you icons in the status bar usually have battery consequences. Maps while tracking your location, Bluetooth, device orientation change things, etc.