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(1) Instructions for lithium ion battery: How to use lithium ion battery correctly? Lithium ion battery is a kind of consumable, and its service life is certain (generally 300-500 times of charging and discharging). Therefore, correct use of the battery is the secret of long life. Different types of batteries have different charging requirements. MH Ni battery is easy to generate heat and high temperature during charging, and the heat cannot be released in time, which is easy to lead to battery deterioration, irreversible damage and even explosion. Generally, according to the charging requirements of the original charger specification, the battery and charger or battery can meet the requirements to prevent long-term continuous charging and charging with unqualified chargers. No protection function (especially low level charger) to avoid injury or danger. It shall be correct to charge a qualified or original charger and delete it after reaching full time. Generally speaking, lithium ion batteries have relatively complete protection functions (protection boards), and other batteries do not have too many requirements. However, in order to prevent the safety problems caused by overcharging of the protection board and failure of the protection function, it is not suitable for long-term charging. After the battery is charged, other charges must be used. When connected to the battery charger, please follow the instructions for operation and use, otherwise, the battery may be damaged or even dangerous

(2) Lithium ion batteries are more prone to overheating, explosion and ignition than other types of batteries. In addition, the battery or charger shall not carry inflammable and explosive materials, such as newspapers, magazines, etc. Before using the battery, check whether the battery meets the load requirements. When the load is not satisfied or the battery is at a high current (greater than 1c), the battery will be damaged or shortened. Long term storage will accelerate the self discharge of the battery and the passivation of active substances, so the ambient temperature and humidity of 10C~30 ℃ 65+- 20% is more appropriate. At the same time, it can reduce the negative impact of long-term batteries (such as) caused by self discharge and passivation. The active substance and battery will be charged and discharged once every three months to restore the original performance. When using the lithium ion battery, it should be noted that after a period of time, the battery will enter the sleep state. When the capacity is lower than the normal value, the service time will be shortened. However, lithium-ion batteries are easily activated. Only after 3-5 normal charging and discharging cycles can the battery be activated and recover its normal capacity. Due to the characteristics of lithium ion battery, it has almost no memory effect. Therefore, do not use special methods or devices to activate the new lithium ion battery in the user's mobile phone. Not only in theory, but also in my own practice, the natural activation charging method is the best from the beginning.

(3) As for the activation of lithium ion battery, many people said that the charging time must exceed 12 hours, and the battery can be activated three times. The statement that the first three times of charging exceed 12 hours is obviously a continuation of nickel batteries (such as nickel cadmium batteries and nickel metal hydride batteries). So this is a misunderstanding. The charge discharge characteristics of lithium ion battery and nickel battery are very different. I can tell you clearly that I have seen all the serious formal technical materials, which emphasize that overcharge and overdischarge will cause great harm to lithium ion batteries, especially liquid lithium ion batteries. Therefore, it is better to charge according to the standard charging time and method, especially the charging time should not exceed 12 hours. Generally, the charging method described in the mobile phone manual is the standard charging method suitable for mobile phones. In addition, when the battery is fully charged, the lithium ion mobile phone or charger will automatically stop charging. The charging time of nickel charger shall not exceed 10 hours. In other words, if your lithium-ion battery is charged, it will not work on the charger. None of us can guarantee that the characteristics and quality of the battery charging and discharging protection circuit will never change, so your battery will be in danger for a long time in the future. This is another reason against charging for a long time.