Lithium polymer batteries are not suitable for charging with high current. High current charging will cause the battery plates to loosen or bulge. Over time, the working status of the battery will deviate significantly, and the capacity of a small number of batteries will decrease more quickly. affecting battery life and eventually being discarded. Lithium polymer batteries, also known as lithium polymer batteries, are a new type of battery which has many obvious advantages such as high energy, miniaturization, light weight, high safety and low cost per compared to previous batteries. In terms of shape, lithium polymer batteries have ultra-thin characteristics and can be made into batteries of different shapes and capacities to meet the needs of certain products. The theoretical minimum thickness of this type ofThe battery can reach 0.5 mm.
I have over-discharged my lithium polymer battery and it can no longer be charged. Is it possible to repair it?
Of course, I can charge it directly with the machine.
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Regarding the “activation” problem of the batteries at lithium, many opinions are that the charging time must be greater than 12 hours and repeated three times in order to "activate" the battery. This claim that "the first three charges require more than 12 hours" is obviously a continuation of the claim regarding nickel batteries (such as nickel-cadmium and nickel-metal hydride). This statement can therefore be considered misinformation from the start. There is a very big difference in the charging and discharging characteristics of lithium batteries and nickel batteries, and I can tell you very clearly that all serious formal technical information thate reviews point out that overcharging and overdischarging will cause serious damage to lithium batteries, especially liquid lithium. Ion batteries cause huge damage. Therefore, it is best to charge according to standard time and methods, especially not to charge for more than 12 hours. Usually, the charging method described in the mobile phone manual is the standard charging method suitable for the mobile phone.
Is there any difference between 3.8V lithium polymer battery and a regular 3.7V polymer battery? My cell phone uses 3.8 battery, if I replace it with 3.7 battery to charge it
I know a little about electronics and I'm not a battery professional, so I can give you some suggestions
< p>First of all, lithium batteries are generally equipped with a protection panel which will avoid problems of sovercharging and overdischarging. If it is determined that the battery is too discharged, the protection panel will also protect it. It is recommended to do the following (operate with caution): 1. Disassemble the battery and separate the battery and the protection board. 2. Apply a voltage of 5 V. To the positive and negative terminals of the battery. Pay attention to using low current and duration. 3. Install the protection panel, 4. Charge or use the test.Principle. : Directly adding a voltage higher than that of the battery is a forced charging process for the battery. Because the plate guard is ignored, the battery will be charged, allowing the plate guard to continue to operate.
Answer Complete
Will the external battery explode?
3.6V, 3.7V and 3.8V batteries are all the same. There are standards for battery voltage, 3.8V, it's just a matter of branduage, it's the same thing internally. The cut-off voltage is 4.2V. The lithium polymer battery itself has a protection plate and has overcharge and overdischarge functions. As long as your charger is a 5V charger, it can be used. Don't worry! Generally, a 5V cell phone charger can kill all cell phone lithium batteries!
As long as you make sure the battery is a qualified battery and has a protective plate, you will be fine. The protective plate will protect the battery.
Many people are now worried about the explosion of power banks. Let me break it down for you: First of all, why do lithium batteries explode? Due to overheating of the battery, a large amount of gas is produced inside and the battery explodes when the pressure reaches a certain height. What causes a battery to overheat? Sovercharge, overdischarge, short circuit, mechanical damage (such as nailing). Indeed, in order to ensure the safety of users, there must be a protection circuit inside the power bank. In the event of overcharge, overdischarge or short circuit, the circuit automatically cuts off the power supply to protect itself. It is therefore very safe for normal use. But if the quality of this protection circuit is not good and it is damaged in advance, it will not be reliable. So you should not buy cheap informal products. During normal use, you should pay attention to monitoring while charging. When abnormal temperature rise is detected, the power supply should be cut off in time to avoid explosions, fires and other tragedies.