The correct method for charging lithium batteries:
1. Charging
The safe operating voltage range of lithium batteries is 2.8 to 4.2. V, which is lower or higher than this voltage range, the lithium ions in the battery become very unstable and can even cause accidents. To ensure the battery is within a safe range, a specialist charger is required. These chargers automatically adjust the charge based on the current battery condition.
2. Activation
Before the lithium charger starts charging, it will supply a small current to the battery, at the same time detect changes in battery voltage and gradually increase the current. up to the set value. This process can be considered an activation or test load.
3. Constant current and voltage charging
The charger charges the battery with constant current.As the battery voltage increases, the charger also increases the charging voltage to speed up charging. .
4. Variable current and constant voltage charging
When the battery reaches the cut-off voltage of 4.2V, only about 70% of the battery is charged (not full). At this time, the charger continues to charge the battery with a constant voltage and a gradually decreasing current. When the value is less than 0.1A, it always detects that the battery voltage continues to increase before stopping charging.
Correct charging method of mobile phone lithium battery
1. The lithium battery can be charged when the power is less than 20% during use. The same applies when charging a newly purchased lithium battery for the first time. You can charge it when the battery is less than 20%. Do not continue charging when it est fully charged.
2. Today's lithium batteries can be charged at any time. Lithium batteries count full charges, which means no matter how many times you charge them. For example, you charge 20% for the first time and then unplug it. The second time I charged to 50% and unplugged it. The third time I charged 30% and unplugged it. The total charge capacity of these periods is 100%, which corresponds to a full charge.
If you are using a vivo mobile phone, it uses a lithium polymer battery, which can be used once fully charged.
You can refer to the following methods to maintain the battery:
1. Do not wait until the battery is exhausted before charging it. Excessive discharge will have some impact on the battery. . In severe cases, this may cause equipment failure. S'It can't be turned on normally, try to charge it in time when the battery is too low;
2. data cable for charging. Non-original chargers may have various problems and damage the battery, thereby reducing battery life;
3. When loading, try not to play while loading. , it is easy to increase the heat, easily consume the battery and shorten the battery life;
4. Charging When finished, please disconnect the power supply in time to avoid charging for a long time;
5. Avoid using the device in a high temperature environment.
Warm reminder: Batteries are consumables. As the number of charges increases, the actual battery capacity decreases.