Nowadays, the MP3 screen on the market is getting bigger and bigger, and the function is getting stronger and stronger, but one data has not changed for many years, and even there is a retrogression. That is the battery capacity. In order to pursue a slimmer body and better portability, the battery has been sacrificed. Now you can watch movies for 3~4 hours with MP3, and the music is about 12 hours. Like Q2, the endurance of 50 hours is to be achieved under very strict conditions. For example, the song bit rate, the battery is fully charged, the sound is off, the volume is limited, and so on. So in order to use it for a longer time, tell everyone how to "serve" the battery. Before discussing lithium batteries, we must first understand that lithium batteries are divided into two categories: lithium batteries and lithium-ion batteries. Lithium batteries are button batteries in products such as electronic watches, and can be charged theoretically. However, not only is the effect not good, but it is also easy to short-circuit, so it is generally forbidden to charge. Later, through Sony's improved design materials, the invention of lithium-ion batteries. That is, the lithium battery that we use nowadays is more safe and has a longer life. The lithium batteries discussed below are all lithium ion batteries. 1. How to charge. Legend 1: The battery has memory, the first three charges must be full, at least 12 hours! This statement refers to the nickel battery. Nickel batteries have strong memory, and insufficient activation at first will affect the use. Although the lithium battery is also activated, it is easy to activate after 3 to 5 normal charge and discharge. There is no memory in itself. Classic SONY GUM Battery The classic SONY chewing gum battery can be seen as a Ni-MH (NiMH) battery. It should be noted that charging for a long time will cause damage to the lithium battery, so most electronic products have the function of charging protection. When the battery is full, it will automatically power off. We can't guarantee that the charging protection function must be relied on. In order to prevent accidents, you should not leave the battery for a long time. In addition, in some places the voltage is unstable, the lithium battery has poor volatility, and the longer charging time means more vulnerable. 2. When to charge. Legend 2: The power should be used as much as possible, it is best to automatically shut down and recharge. This is also said to be a nickel battery. Due to the memory of the nickel battery, it is necessary to use photoelectricity to start charging every time. Some people may remember that the early mobile phone charger also had the function of "discharging". However, lithium batteries do not apply to this rule at all, and excessive discharge is harmful to lithium batteries. In order to ensure the life of the lithium battery, it is best to start charging when the power is low. Ni-Cd (nickel cadmium) battery The first generation of rechargeable batteries, Ni-Cd (nickel cadmium) batteries. There is memory and cadmium is extremely harmful to the human body. Say a real example. The author once went out to play, the phone did not charge in time, causing the battery to run out completely. When I came back, I couldn't charge it. I had to send customer service to overhaul. This is because the battery is over-discharged and the voltage is too low, even without normal charging conditions. Li-ion (lithium battery) used by PSP 3. Precautions in use. In recent years, I have been hearing about the explosion of mobile phone batteries . The lighter burns down the property, and the heavy one even burns the user. As for the culprit of the explosion, it is the battery (nonsense, I have not heard that the motherboard can explode!). This is because many materials in lithium batteries can react with water and can undergo a violent chemical reaction and release a large amount of heat, resulting in heat generation and combustion. The manganese dioxide of the positive electrode of a lithium battery can be heated only by a small drop of water. When the thionyl chloride in the lithium battery is in contact with water, heat energy is released while generating hydrochloric acid and sulfur dioxide. Understand the truth, the prevention method is also very simple, as long as you pay attention to waterproof and moisture-proof. For unused lithium battery products, be sure to take the battery separately and place it separately. Winter is coming soon. After returning from the outside, be sure not to keep MP3, mobile phones and other products in your pocket. Condensation can cause the product to become very humid inside and outside, and it should be ventilated and dried in time. Even if the battery is ok, it may cause a short circuit and damage the device. Pants burned by batteries Some netizens may have to ask, can you watch movies while charging? This problem cannot be generalized. Some products have separate AC circuits and battery circuits, and there is no problem in charging while using them. But some can't, if the instructions are not stated, for security reasons, it is best to consult customer service. Lithium battery tips A lithium battery is a battery in which a lithium metal or a lithium alloy is used as a negative electrode material and a nonaqueous electrolyte solution is used. The process of reflection is: Li+MnO2=LiMnO2 The reaction is a redox reaction and is discharged. Although lithium batteries have been widely used in recent years, their history is very long. The first lithium battery was invented by the great inventor Edison. Due to the very active lithium metal, high demands are placed on the manufacturing process. It was only used in the aerospace or military field in the early days, and it was promoted on civilian equipment with the improvement of manufacturing processes. TAIZHOU RUNDE offers a large selection of end feed Copper Fittings at the most competitive prices on the internet. These fittings are manufactured to EN1254-1 ,ASME B16.22 ,ASTM and ANSI standards from high purity, commercial grade C12200 alloy also used by leading copper manufacturers such as Mueller, Elkhart, Nibco and others. 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How to charge MP3? Interpretation of lithium battery performance
How to charge MP3? Interpretation of lithium battery performance