You plug it in every night without thinking about it, telling yourself that it’s better to leave with a 100% full battery. But what if this innocuous routine was quietly reducing your battery life? Behind this daily gesture lies a common trap of our smartphones. Here’s what the experts recommend… and why you’ll never look at your charger the same way again.
Why is 100% charge too much?
Maximum voltage = maximum stress for the battery
Lithium-ion batteries, found in almost all of our phones, hate extremes. When you charge them to 100%, you push them to their maximum voltage limit. This repeated stress wears out the battery prematurely, a bit like forcing a rider to sprint non-stop. As a result, battery life is reduced.
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