Extend Cell Battery Time
One big drawback of an old phone is a tired battery. The main reason my father-in-law got a new phone and gave me his old one was battery issues. His phone wasn't even lasting him the day! Of course, being me, the first thing I did was upgrade the OS from 4.2.2 to 5.1.1, which helped with some of the battery issues. Next was to turn off active desktop, which is a huge battery hog. Then, as I never use Bluetooth, I turned that off. Doing all these got me through the workday, but after using Map for GPS on my way home, I would be down into battery saving mode, which I set at 15% or less. Last Wednesday, I tried turning off my wi-fi while at work, which saved me a bunch of power. When I got out of work, the phone said I still had 5 hours of battery life, or 41%! Next time, I'll tell you how I automated this process.
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