How to Fix a Lithium Battery That Can't Hold Power

Introduction How to fix lithium battery that can't hold power? What should I do if the lithium battery cannot be charged? Let's take a look below. 1. When using lithium batteries, it should be noted that after the battery is left for a period of time,

How to Fix a Lithium Battery That Can't Hold Power

What should I do if the lithium battery cannot be charged? Let's take a look below.

1. When using lithium batteries, it should be noted that the battery will enter a sleep state after being left for a period of time.

2. Self-discharge will cause the battery to discharge. At this time, the capacity is lower than normal, which will make the battery too weak and unable to charge.

3. However, lithium batteries are easy to activate. The battery can be activated and restored to normal capacity after 3-5 normal charge and discharge cycles.

4. Due to the characteristics of lithium batteries themselves, lithium batteries have almost no memory effect, so the new lithium batteries in users' mobile phones do not require special methods and equipment during the activation process.

5. ThisThis is not only true in theory, but from my own practice, the "natural activation" method of loading using standard methods from the beginning is the best.

What is the reason why lithium batteries cannot be charged?

There are many types of lithium batteries, including batteries made of round cells such as 18650 and lithium batteries composed of polymers. divided into two main categories, lithium metal batteries and lithium ion batteries. Charging methods basically include constant current charging, constant voltage charging, pulse charging, etc. Different charging methods are used at different stages if charging does not arrive. , There are several situations:

1. The lithium battery is in an over-discharged state

That is, the lithium battery is discharged very weakly, is ins a deep discharge. state, and the energy is almost exhausted. As low as the cut-off voltage of the lithium battery, activation methods can be used at this time, but this is not necessarily effective;

2. a problem with the charger or charging line

First of all, you need to check the charging. If there is a problem with the device, the method is very simple. You can directly measure the output voltage or connect a load. with the corresponding voltage and observe. If there is a problem with the circuit, then you need to put in some effort. After all, it involves circuit hardware and other issues. If necessary, just open the scan.

3. The lithium battery will fail after prolonged use

The possibility of this happening is relatively small, but it cannot be ruled out. You need to know your own battery. How long does it take to replace thehas battery?

4. There is a problem with the battery charging IC or BMS system

Due to cell imbalance and other reasons, the battery management system has problems, leading to the integrated management circuit to incorrectly evaluate and not detect the voltage or current.

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Freezing can restore the ionic performance of the lithium battery. Normal temperature favors ionic performance.

At normal room temperature, the internal kinetic energy of electrons is relativeatively important, the battery is therefore in an active state and leaks are relatively frequent. When the battery is placed in a low temperature environment, the lithium film on the surface of the lithium battery and the microscopic structure of the electrolyte structure, as well as their interface, will undergo significant changes, causing the battery to be temporarily inactive. battery, and the battery can be restored in the refrigerator.

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