How to wake up a dormant lithium battery and restore its performance
If a lithium battery refuses to charge or turn on, it may be in a deep dormant state. Honcell will discuss why the dormant state occurs, how to restore the battery's performance, and how to prevent the lithium battery from entering a dormant state again.
1. Why does a lithium battery go into a dormant state?
The main reason why a lithium battery goes into a dormant state is that the lithium battery protection board detects a battery problem. In order to prevent damage or even danger, the battery will automatically shut down to ensure safety.
Common situations are:
A. Overdischarge: When the battery is overdischarged or inputs very low power, the lithium battery voltage is likely to be lower than the minimum voltage threshold set by the lithium battery protection board. For safety reasons, the battery will automatically cut off the power output and put the battery into a dormant state;
B. Overcharge: When overcharged, the internal temperature of the battery will rise and the internal pressure will rise. For safety reasons, the battery will automatically cut off the power charging and put the battery into a dormant state;
C. High temperature environment: High temperature environment will accelerate the chemical reaction inside the lithium battery and even destroy the chemical balance, affecting the stability, performance, capacity and life of the battery, and eventually put the battery into a dormant state;
D. Low temperature environment: Due to low temperature, the chemical reaction activity of the lithium battery is reduced, destroying the chemical balance, affecting the stability, performance, capacity and safety of the battery, and eventually putting the battery into a dormant state;
2. How to wake up the lithium battery
A. How is the lithium battery affected by long-term storage or high temperature? It needs to be placed in a low-temperature dry environment of about 5° for about 30 minutes, and then naturally return to the temperature, and then charge;
B. If the battery still has power, it needs to be discharged and used continuously until it stops, and then charged after a power outage;
C. Use a fast charger to charge, and when the voltage increases, use the original charger to charge;
After waking up, 3-5 normal charge and discharge cycles can restore the normal performance of the lithium battery.
If the above methods cannot wake up the battery, you need to find a professional or use professional tools to wake it up.
3. How to prevent the lithium battery from sleeping again?
A. Normal charging and discharging: Avoid overcharging and discharging, and keep the battery power between 20% and 80%;
B. Avoid long-term inactivity: When not in use for a long time, it should be placed in a room temperature, dry environment, and should be charged and discharged regularly;
C. Avoid high and low temperatures: Do not place it in an extremely high-end, low-temperature environment for a long time;
D. Avoid severe squeezing and collision: Severe squeezing and collision can easily destroy the stability of the battery and even cause safety accidents;
It is recommended to regularly check the actual capacity, voltage, and whether there are bulges, leakage, etc. of the battery. If there is any abnormality, please stop using it. If it is a more important battery, please ask a professional to perform maintenance in time.
