Why Does the Phone Battery Capacity Begin to Decay after Use One Year?

By Carrie Tsai,  Last Updated: October 10, 2018

Do you have this feeling that a new mobile phone will start to appear insufficient power after one or two years, high-end smartphones or cell phones with large battery capacity can continue to use, but if the battery capacity is small or low-end, you will find that the battery is getting less and less durable, and the number of times you charge every day will make you feel tired. What is the cause of this?

Battery Capacity Attenuation

The phone battery will have an aging problem. It has a limit of the number of charge and discharge cycles, generally between 300 and 500 times. The charge and discharge cycle here does not mean that you charge once or even once, but The battery is charged from 0% to 100% and then discharged from 100% to 0%.

When the number of cycles is getting closer to the limit value, the internal resistance of the battery will increase, that is, the battery capacity begins to decay, and the battery loss becomes more and more serious, so that the battery capacity becomes less and less durable.

Static Attenuation

Maybe you will say that since you use your mobile phone, the battery will be attenuated. If I buy it and put the phone away, willn't the battery be attenuated? Unfortunately, don't say that you can really put your new phone away. Even if you do, the battery of the phone will still be attenuated, that is, the battery itself will be broken. Of course, this process will last for a long time.

Bad Habits

In addition to the battery itself will attenuate, our usual bad habits when using the phone will also deplete the battery.

NO.1 Charge phone while playing it

Most of us like to play mobile phones while charging, but they don't know that when the mobile phone is under heavy current, the battery is hot and the loss is increased, resulting in less and less durable.

NO.2 Improper charging time

Maybe you will use the phone to charge if it is not powered, or if the phone is fully charged and plugged in the data cable for a long time, both charging habits will deplete battery life. It is recommended not to wait until the phone is completely exhausted to charge, and do not continue to charge when the phone is fully charged. It should be used as needed, which is more conducive to extending the life of the phone battery.

NO.3 Regularly charge the phone when it is idle

Nowadays, many people have several mobile phones, so some mobile phones will be ignored if they are useless, but the battery loss of this mobile phone will be faster. Because when the mobile phone is not used for a long time without being charged and discharged, the battery will leak and the power will gradually decrease, which may cause the battery to be over-discharged. The correct way is to periodically charge and discharge the idle mobile phone to avoid the loss.

NO.4 Do not use your phone in extreme weather

In addition, if you are in some areas with poor climate, you should also pay attention to protect your mobile phone. This is because the temperature has a great influence on the battery. The ideal charging environment temperature of the battery is between 0 °C and 45 °C, and the discharge temperature is - 20 ° C to 60 ° C, if the weather is too extreme, beyond this range, the battery will also be affected.

Now you finally know why your mobile phone is not durable after one or two years of purchase. Although the mobile phone battery itself has an aging problem, if we use it correctly, it may extend its life.