Should You Charge Your Smartphone Overnight
What the Science Says Let’s clear up one thing right away. No matter what, charging your smartphone overnight, during the day or in the car, is going to degrade performance over time. The lithium-ion batteries that power smartphones (and tablets) have a shelf life that won’t continue forever. They also cut off charging power when a battery reaches 100%. Each smartphone will have a different “cycle” number that indicates how many zero-to-full charges the battery can handle before it needs to be replaced....