Charge Your Phone Faster by Switching to Airplane Mode Before Plugging In.
Travelers are familiar with Airplane Mode on their smartphones. This mode turns off all radios in the phone, stops all background processes, and essentially puts the phone into hibernation. Small wonder that putting the phone in this mode will cause the phone to charge faster. At home, car and office, it is easy to keep the phone charging all the time, so we don't really care if there are processes going on that slow down the charge. But, if you are at the gate, and you have 10 minutes before boarding a long flight, every minute counts. Of course, if you have most Android phones, just pack a spare battery, and, if you run out of juice on the flight, pop another battery in.