Many of us have the habit of leaving our cell phones charging overnight and starting the day with a full battery. Although it seems like the most practical option, doing so frequently can shorten its lifespan.

Today’s phone batteries are lithium-ion , a very efficient type of battery that deteriorates more quickly when kept at 100% capacity for a long time.

Battery chemistry in simple words

Chemical reactions occur inside the battery, allowing it to store energy. However, the closer it approaches its maximum capacity, the greater the internal voltage, and the more the cells are stressed.

It’s like inflating a balloon to the maximum every day: over time, it loses elasticity and resistance.

Therefore, regularly maintaining the battery at 100% accelerates its natural wear.

Why is it better to charge up to 80 or 90%?

Manufacturers and experts agree that limiting charging to between 80 and 90% helps conserve battery life . The benefits are clear: