About maintenance analysis of mobile phone lithium battery

Mobile phone batteries are divided into three categories in terms of their manufacturing materials: nickel-cadmium batteries, nickel-hydrogen batteries, and lithium-ion batteries. Among them, the nickel-cadmium battery is the first-generation mobile phone battery. It has a low capacity and has a memory effect. It needs to be discharged frequently to maintain the capacity, and the manufacturing materials have environmental pollution. At present, this kind of battery has been basically eliminated. The second-generation nickel-metal hydride battery has a higher capacity, no memory effect, and little environmental pollution caused by manufacturing materials. People are used to calling them environmentally friendly batteries.

The current development trend of mobile phone batteries is lithium-ion batteries, which have the following advantages: (1) No memory effect, no need to discharge, and long use time. (2) The working voltage is high. Generally, the voltage of a single lithium-ion battery is 3.6V, and the voltage of a nickel-hydrogen and nickel-cadmium battery is 1.2V, a difference of 3 times. (3) Small size, light weight, and high specific energy. The specific energy of lithium-ion batteries can be more than twice that of nickel-cadmium batteries. Compared with the same capacity Ni-MH battery, the volume can be reduced by 30%, and the weight can be reduced by 50%. (4) Long life. The lifespan of high-quality lithium-ion batteries can reach more than 1200 times, which is much higher than other types of batteries. (5) Safe and fast charging. Lithium-ion batteries are treated with special technology, so they are allowed to be fully charged within 2 hours, and their safety performance is greatly improved. (6) The allowable working temperature range is wide. Lithium-ion battery can work between -20℃-60℃. High temperature discharge performance is better than other types of batteries.

So how to distinguish true and false lithium batteries? Under non-professional conditions, the following methods can be used: batteries of the same capacity, lithium batteries are lighter than nickel-metal hydride and nickel-cadmium batteries; use a special charger for lithium batteries to charge the battery. If the battery heats up during charging, It is a nickel-metal hydride and nickel-cadmium battery. If there is no major change in temperature, it is a lithium battery; use it after 'instantly' short-circuit the positive and negative electrodes of the battery. If the battery is 'out of powerIt is nickel-metal hydride and nickel-cadmium batteries.

In the use of lithium batteries, it should be noted that after the battery is left for a period of time, it will enter a sleep state. At this time, the capacity is lower than the normal value, and the use time is also shortened. After 3-5 recharges, the battery can be activated and normal capacity can be restored.

When the battery is inadvertently short-circuited, the internal protection circuit of the lithium battery will cut off the power supply circuit to ensure the safety of the user. The battery can be removed and recharged to recover.

To buy lithium batteries, you should choose a brand battery with after-sales service, international and national recognition. This type of battery uses high-quality raw materials, has a complete protection circuit, and It works well with mobile phones and can achieve good communication effects.