The power consumption of the mobile phone in standby is very small, that is to say, the equivalent load resistance of the battery is large, so the discharge current is very small, so the battery will not heat up, and the internal consumption of battery power is very small. The power consumption of the mobile phone is very large when it is waiting for a call or charging, that is to say, the equivalent load resistance of the battery is small, and the working current is large. After the battery is discharged, the internal resistance increases, but the current required for the work of the mobile phone can not be reduced, then a considerable part of the energy is consumed in the internal resistance of the battery, resulting in the battery heating, discharge acceleration, and the battery's use time is quickly shortened.
Mobile phone battery heating prevention and solutions:
I. Prevention methods:
1. When the mobile phone is at normal room temperature, the heat does not exceed 60 ° C is normal, and it will not damage the battery.
2. The use of high-current charger should not be too long, too long charging will cause the battery to be damaged, but also generate heat.
3. It is best to use the original charger or the product with good quality reputation.
4. If you are not in a hurry to use it, it is recommended to charge the charger (slow charge mode), which will not cause the battery to heat up
5. Use the mobile phone to listen to MP3 or battery charging if you feel the mobile phone is a little hot, if more than 60 ° C, immediately return to the standby state or change the battery to use, if in charge, immediately unplug the charger.
It may be that the battery itself is faulty, may be due to battery aging, internal resistance, electrolyte drying, internal short circuit caused by heat, and may be the charger problem, the general charger has no pulse function, there is no negative pulse to eliminate polarization function, such chargers usually can not be constant voltage in the late charging period, resulting in a large amount of battery gas, water loss, heat.
Battery charging heat, the simple explanation is that the chemical reaction generates heat. Lithium battery heating is a common phenomenon in life, often appear in the use of lithium battery as a power cell phone, laptop and other wireless household appliances, due to the lithium battery in the discharge of the battery inside the chemical reaction, produce a lot of heat energy, resulting in a rise in battery temperature, so that we touch the hand will feel the temperature, which is a common phenomenon in most lithium batteries.