Lithium battery manufacturers daily maintenance skills tutorial analysis Xiaofa, most of the use of lithium batteries because of the misunderstanding of related terms, so it is necessary to explain.

1. Memory effect

Metal nickel hydride is a common phenomenon. The specific performance is: if you start to use the battery without filling it for a long time, the number of batteries will decrease significantly, even if you want to fill it in the future, the filling is not satisfactory. Therefore, the important way to maintain the Ni-MH battery is to start charging only when the battery is used up, and then allow it to be used when it is fully charged. Today’s lithium batteries have a negligible impact on memory.

2. Completely charge and discharge

This is a lithium battery.

Complete discharge refers to the process in which smart electronic devices, such as mobile phones, are adjusted to the lowest power level and the battery is exhausted until the mobile phone is automatically turned off.

Full charging refers to the process of connecting a fully discharged electronic device (such as a smart phone) to the charger until the phone prompts that the battery is overflowing.

3. Excessive discharge

The same goes for 　　 lithium batteries. After being fully discharged, there is still a small amount of charge inside the lithium battery, but this charge is critical to its activity and lifespan.

Over-discharge: After a complete discharge, if you continue to use other methods, such as: forcibly turning on the phone to consume the remaining power of the battery connected to the small light bulb, this is called over-discharge.

Causes irreversible damage to the lithium battery.

4. The chip

Lithium batteries have very strict requirements on current and voltage during charging and discharging. In order to protect the battery from the external abnormal electrical environment, the battery body will be equipped with a chip to handle the battery’s operating state. The chip also records and calibrates the capacity of the battery. Now, even the batteries of counterfeit mobile phones cannot save this vital repair chip, otherwise the batteries of counterfeit mobile phones will not last for a long time.

5. Overcharge and overdischarge maintenance circuit

Electronic smart devices have built-in chips and circuits to handle all battery work.

For example, there is a circuit in your mobile phone, and its function is like this:

First of all, when charging, provide the most suitable voltage and current to the battery. Stop charging at an appropriate time.

2. Do not charge, check the remaining battery status in time, and order the phone to shut down at an appropriate time to prevent over-discharge.

3. When turning on the battery, check whether the battery has been completely discharged. If it has been completely discharged, prompt the user to charge, and then shut down.

4. Prevent the abnormal power supply of the battery or the charging cable, disconnect the circuit when the abnormal power supply is found, and maintain the mobile phone.

6. ​​Excessive charges:

This is for lithium batteries.

Under normal circumstances, when a lithium battery is charged to a certain voltage (overload), the charging current will be cut off by the upper-level circuit. However, due to the different voltage and current parameters of the built-in overload and overdischarge maintenance circuit of some devices (such as mobile phone battery charging), this phenomenon is caused. Has been charging, but did not stop charging.

Overcharging can also damage the battery.

7. How to activate it

If the lithium battery is not used for a long time (more than 3 months), the electrode material will be passivated and the battery function will be reduced. Therefore, the battery has been fully charged and discharged for three times and purified to give full play to the maximum function of the battery.