Tech Myth Busting: Charging Overnight Harms Laptop Battery?
We've all heard the warning: "Don't leave your laptop plugged in overnight, it'll ruin the battery!" This advice gets passed around like gospel in tech circles, but is there any truth to it? Let's separate fact from fiction. Leaving your modern laptop plugged in overnight is generally fine. Your laptop is smarter than you think. Why This Myth Exists This concern made more sense a decade or two ago. Older nickel-cadmium and early lithium-ion batteries were more vulnerable to overcharging and didn't have sophisticated management systems. The worry was that constant charging would degrade the battery quickly or even cause safety issues. How Modern Laptops Actually Work Today's laptops use advanced lithium-ion or lithium-polymer batteries with built-in battery management systems (BMS). Here's what happens when you leave your laptop plugged in: The laptop stops charging the battery once it hits 100%. Instead, it runs direct...