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Smartphone Battery Tips- Do you know the 80-20 rule for charging the battery, let us know
Samira Vishwas | January 28, 2026 4:26 PM CST

Friends, in today’s modern era, smartphones have become an important part of our lives, which make many tasks of our lives easier. Due to excessive usage, the battery of your smartphone drains, the real reason for this can be your charging habit. Many users still charge their phones from 0 to 100 percent every day, without knowing that this habit gradually deteriorates the battery. Experts recommend following the 80-20 charging rule, let us know about this rule-

What is the 80-20 charging rule?

The 80-20 rule means you should avoid letting your phone’s battery drop to 0 percent or charge it completely to 100 percent. The best practice is to start charging when the battery reaches about 20 percent and remove the charger when it reaches 80 percent.

Why is it harmful to fully charge the phone?

Many users habitually charge their phones from 0 to 100 percent. This puts more pressure on the lithium-ion battery cells. Full charging accelerates chemical wear, which is why battery backup starts reducing within a few months.

Impact on battery backup and performance

Following the 80-20 rule puts less load on the battery, which causes it to deteriorate gradually. As a result, battery backup remains the same for a longer period of time.

Relief from heating problems

Phone heating during charging is a common problem, especially in summers and among iPhone users. The battery gets very hot when charged up to 100 percent. This is why Apple itself recommends limiting charging to 80 percent in many situations.

Important Charging Tips to Remember

Following the 80-20 rule, always use an original or certified charger to ensure proper power supply. Avoid using the phone excessively during charging, as it increases heat.


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