How to Extend Your Phone Battery's Lifespan

Phone batteries degrade over time, but how you charge them significantly affects how quickly. Lithium-ion batteries last longest when kept between 20% and 80% charge. Routinely charging to 100% or draining to 0% accelerates chemical degradation of the battery cells.

Most modern phones have a built-in feature — "Optimized Battery Charging" on iPhone, "Adaptive Charging" on Pixel, "Protect Battery" on Samsung — that learns your routine and delays charging past 80% until you need it. Turn this on. Also, avoid wireless charging when possible as it generates more heat, which is the number one enemy of battery longevity. These small habits can add a year or more to your battery's useful life.