Myth: Charging overnight damages the battery
Actually: Modern smartphones have circuitry that automatically stops charging once the battery reaches 100%, so charging overnight doesn't put significant strain on the battery.
Myth: You should fully drain the battery before recharging to extend its life
Actually: This outdated advice comes from the "memory effect" of older nickel-based batteries and doesn't apply to today's lithium-ion batteries. In fact, frequently draining a lithium-ion battery all the way to empty can shorten its lifespan.
Myth: You should frequently force-close background apps to save battery
Actually: Most modern operating systems are designed to manage background apps efficiently on their own, and manually force-closing them often actually uses more power when the app has to fully restart.
Myth: Fast charging significantly shortens battery lifespan
Actually: It's true that fast charging generates somewhat more heat, but manufacturers design it to stay within safe limits, so under normal use it has little meaningful impact on battery lifespan.
Myth: Any charger besides the original one is bad for the battery
Actually: A properly certified product (such as one with MFi or USB-IF certification) poses no real risk to the battery β problems mainly arise from cheap, uncertified, low-quality chargers.
Myth: Cold weather permanently damages the battery
Actually: Battery performance may temporarily appear to drop in cold temperatures, but it typically returns to normal once the device warms back up to room temperature.