Many people have a habit of charging their phones before going to bed and taking them out the next morning. Although convenient, maintaining the battery at 100% for many consecutive hours can cause the battery life to degrade faster over time.
Experts say that lithium-ion batteries - the type of battery used on most smartphones today - are not only affected by the number of charges but also by temperature and voltage levels. Frequently letting the battery run out or maintaining it at 100% full for a long time can accelerate the aging process.
However, the biggest "culprit" is not charging overnight but high temperatures. When the phone is charging while running heavy tasks such as playing games, watching videos or editing content, the amount of heat generated will increase the battery degradation rate.
To limit this situation, many technology companies have integrated battery protection features. Apple said that lithium-ion batteries are naturally consumable components and will gradually lose capacity over time.
To limit this situation, iPhone is equipped with the "Optimized Battery Charging" feature. This feature will learn the user's usage habits, temporarily stop the charging process at about 80% and only complete the charging to 100% right before the time the user usually takes out the charger. Thanks to that, the battery life at a high voltage level is significantly reduced.
Apple also recommends that users use devices in environments from 0 to 35 degrees Celsius and remove some types of cases when charging if the phone shows signs of heating up.
Meanwhile, Samsung provides the "Battery Protect" feature on the One UI interface. When activated, the phone will limit the maximum charging level to about 85%, helping to reduce pressure on the battery during long charging sessions.
Many other companies such as Google, OnePlus or Xiaomi have also developed similar technologies with the ability to adjust charging speed or limit battery capacity based on actual usage habits.
Although smartphones today are equipped with many protective mechanisms, some habits can still cause the battery to drain faster. That is to leave the phone to be charged under direct sunlight, in hot cars, under pillows or use the device with high intensity while charging. In addition, cheap cables and chargers of unknown origin also pose a risk of affecting battery durability.
According to experts, users do not need to be too obsessed with keeping the battery in the range of 20%-80%. Instead, you should turn on the available battery protection features, use a quality charger and keep the device in a cool and ventilated environment when charging.
Charging your phone overnight will not damage the battery immediately as many people think. However, if combined with high temperatures and unreasonable usage habits, the battery can degrade significantly faster. With just a few small changes in charging and using, users can completely extend the battery life and maintain device performance for many years.
