What is battery hibernation? How to activate a lithium-ion battery in hibernation mode? Battery hibernation is usually caused by over-discharge. In this case, it is best to activate it with a small current, and then charge it with a normal current. Use a charger with a voltage slightly higher than the normal mobile phone charging voltage to charge it for a strong activation, repairing and reviving the lithium-ion battery that has gone into hibernation mode due to excessive self-discharge.
What is battery hibernation?
The main component of a battery in hibernation mode is an unused lithium-ion battery, characterized by a gradual decrease in voltage. For lithium-ion batteries that have been unused for extended periods for various reasons, their voltage will gradually decrease due to self-discharge. When the voltage drops below the minimum threshold voltage set by the lithium battery protection board, the power output will be automatically cut off. At this time, a multimeter will not detect any voltage outside the lithium-ion battery, and it will not be able to be charged by a mobile phone or universal charger; this is called battery hibernation.
For lithium-ion batteries that have not been used for a long time for various reasons, a multimeter will not be able to measure the voltage outside the battery, and it will not be able to be charged by a mobile phone or universal charger. Many people may think that the battery is broken, but in fact, the battery may not be damaged at this time, and may just have entered a dormant mode.
How to activate a lithium-ion battery from dormancy?
Some users, due to bad habits, such as playing mobile games while charging when the battery is low, often completely drain their phone's battery, causing it to enter a dormant state and then become unable to charge. Below, lithium-ion battery manufacturers offer several solutions.
① Charge using a direct power source
If your phone shuts down automatically due to low battery and won't turn on, don't panic. The phone isn't actually broken; it's just that the battery has completely drained. At this point, simply recharge it. We recommend using a power outlet rather than a computer or power bank, as the latter two charge very slowly.
② Reinsert the battery and charge it.
When a smartphone shuts down automatically due to a dead battery and won't turn on, first try charging it in a suitable environment. Cold environments may prevent it from charging properly. Then, remove the lithium-ion battery and reinsert it. Sometimes this method works quite well. When the charging light comes on, it means charging has started. Wait patiently for a while, and it should turn on.
③ Use a universal charging dock to charge.
Place your dead phone on a power source to charge, but don't turn it on immediately. Turning it on also requires power. If charging still doesn't work, you can use a universal charging dock to charge the phone's battery. After a while, the lithium-ion battery will be reactivated, at which point you can switch back to your original charging method.
④ Charge for a while before turning it on.
Regardless of the method used to activate a dormant lithium-ion battery, do not rush to turn it on. Even if the battery has been charged somewhat, it will quickly drain completely upon restarting. It is recommended to charge for half an hour before turning on the phone, and then put it in airplane mode.
The above are the activation methods for lithium-ion batteries in a dormant state. It should be noted that lithium-ion batteries enter a dormant state after being stored for a period of time, at which point their capacity is lower than normal, and their usage time is shortened. However, lithium-ion batteries are easily activated; they can be activated and restored to normal capacity after 3-5 normal charge-discharge cycles.
