
That's why your old phone doesn't stay charged for as long. The lithium-ion batteries in our phones chemically age and hold less charge over time. There are many other factors, including extreme temperature fluctuations and your charging habits. Your battery's lifespan isn't just based on when it was assembled. Start the day smarter: For first-in-the-morning updates, sign up to get USA TODAY's Daily Briefing in your inbox Let’s end the debate on whether charging overnight will do that. What about your smartphone’s battery’s performance? It will decline over time, but you don’t want to speed up the process. Here’s the definitive guide to how often you should reboot your computer and the correct way to do it. Some people shut down their computers every day to lessen wear and tear. Tap or click to learn what the test results mean. Type *3001#12345#* into your dialer and press the call button to access “Field Mode” to get details about local networks and cell towers.


Many tech myths are floating around, like more bars on your phone means better service. Watch Video: How to extend your cell phone's battery life
