When the battery is used for a long time, it will not swell under normal conditions. The reason for the battery expansion is caused by excessive charging time. It does not affect the use, but the standby time will be shorter and shorter. Reasons for battery heating expansion: a The power consumption of the mobile phone during standby is very small, that is to say, the equivalent load resistance of the battery is large, so the discharge current is small, so the battery does not generate heat, and the internal energy consumption of the battery is small. b The power consumption of the mobile phone when it is waiting to be called or played is very large, that is to say, its battery has a small equivalent load resistance and is operated with a large current discharge. After the battery is discharged, the internal resistance increases. However, the current required for the operation of the mobile phone cannot be reduced. Then, a considerable part of the energy is consumed on the internal resistance of the battery, causing the battery to heat up and accelerate the discharge. The time of use is also shortened very quickly. The above is the reason why the mobile phone battery will be hot when used for a long time. 5 Mobile phone battery heating hazards and solutions a Long-term fever of the mobile phone battery will cause the internal parts of the mobile phone to heat up, causing the mobile phone to restart or hang up the call during the call. b The long-term heating of the mobile phone battery will increase the heat of the battery itself. If it is sealed (NOKIA is not sealed, the battery is directly charged), the battery will cause the internal air to expand rapidly, causing the battery to protrude outside. Seriously, the battery will explode. c The long-term heating of the mobile phone battery will accelerate the aging process of the mobile phone itself and shorten its life. The above is the danger of long-term fever of the mobile phone battery on the mobile phone. Solution: 1. If the mobile phone battery has been charged, there are ways to solve it. Just use your finger to find the gap of the battery first (the back of the phone battery is close to the charging electrode of the phone, press it to a little soft place), and poke a small hole for the inside to let the air out. 2. Also buy a battery. Metal stamping Led driver Metal Base
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★★About the reasons and analysis of the expansion of lithium battery and mobile phone battery during use: