Many people have encountered this problem. The laptop battery can't be charged. Let me talk about how to solve this problem. I hope it can help you.
1. First of all, many computer brands will equip laptops with power management software. If a "battery protection mode" is enabled, the software will prohibit battery charging and discharging after detecting that users use AC power, so as to prolong the service life of the battery. Therefore, if you find that the notebook does not charge, you can first enter the relevant power management software to turn off the battery protection mode or tick off the disable charging option. If there is no problem with the hardware, you can charge it.
2. Secondly, the hardware failure of the battery itself can usually be judged by restarting the computer and plugging in and out the battery again. If the battery still cannot be charged, it is advisable to install some hardware detection applications to obtain the approximate battery loss reference information. If it is determined that it is a battery hardware failure, do not open it by yourself or try to repair it. There is a certain risk. Do not blindly believe in some so-called tricks, which may cause the battery to catch fire or even explode.
What if the notebook battery doesn't charge?
1. Refresh the battery with software method: some computer optimization software or hardware detection software can be used to conduct a comprehensive inspection of the computer. These software will automatically calibrate and discharge the battery according to the state of the battery. After the program is completed, it can be found that the gap between the actual capacity and the designed capacity of the battery will become smaller (but still exist).
2. Refresh the battery with the method of firmware: some notebook manufacturers embed the battery correction program into the BIOS firmware (such as ASUS), as long as they enter the BIOS to execute the battery correction program when starting up. The method of using firmware is to use BIOS, enter the BIOS interface when starting up, and then correct the battery program in BIOS.
3. Replace the battery cell or deep discharge: for some battery chips that have problems for a long time, you can replace the battery chip, but you should be careful in the process of replacement. At the same time, you can also use deep discharge for repair. Of course, this method is risky, and these behaviors may lead to damage or unavailability of the battery.
What are the misunderstandings of notebook battery?
1. Myth 1: notebook lithium battery is full when used. In fact, the battery activity will be reduced to 100% in the process of rapid charging and discharging.
2. Myth 2: you can put it on the bed as long as you turn it off and keep it on. In fact, it is easy to cause the battery to overheat and catch fire. Therefore, we should try to avoid placing the computer in sofa, bed and other places that are not easy to dissipate heat.
3. Myth 3: notebook computers never remove the battery. In fact, the problem of overcharge does not exist for a well-designed lithium battery, because the lithium battery has a protective circuit.
4. Misunderstanding 4: continue to use when fully charged and still connected to the power supply. In fact, in addition to reducing the service life of the battery, the simultaneous use of AC and battery will also cause overheating of the machine and easy to damage other components.
5. Myth 5: the battery should be fully charged or discharged to save. In fact, the notebook lithium battery should be activated regularly. It is not correct whether it is fully charged or discharged. The correct method is to discharge about 30 ~ 40%.