Why can't the laptop battery be charged?

One: Power adapter failure. Many friends call the power adapter a charger. Although it is not accurate enough, it is indeed very vivid. It is also very simple to judge whether the non-charging is caused by the power supply, and the replacement method can be used. This kind of failure is more common in DELL notebook repairs. DELL notebooks use LBK (DELL architecture). The charging circuit is designed to be special. If there is a problem with the adapter, it will not charge. If it is not the original adapter, it will also not charge. In HP's slightly newer notebooks, there are also more models that use this charging circuit. The more classic fault is that the percentage of HPNX6400 CPU occupancy rate is also caused by power failure. Two: Battery failure The performance of laptop battery failure is relatively simple. Most of the charging progress always shows 100%. In fact, the battery life is less than a few minutes after the power adapter is removed, or the battery cannot be detected directly. The important thing is that the laptop battery, optical drive, and fan are veritable consumables in the notebook accessories due to the normal loss of the battery itself. Related tips: Even when the laptop is powered off, the battery is always in a power-draining state to maintain the basic standby voltage on the motherboard. Once connected to an external power source, the battery will automatically start charging by default. There are many notebooks that are not often moved in the office or at home, but because the battery is installed on the machine for a long time, it is always recharged and discharged, which seriously affects the service life of the battery. Some people say that their laptop battery is almost unusable after using it alone for several times. This is the reason. Therefore, if the notebook is not used for a long time, the battery must be removed, its power shall be controlled at 40%, and it shall be stored at a temperature of 15°C or lower. The fault judgment is also replaced by the replacement method. Sometimes you cannot find the same type of battery and you have to go to a professional notebook repair center for help. In the past, one item in our maintenance business was the replacement of laptop battery cells, that is, laptop battery maintenance. With the popularity of notebook computers, the price of notebook accessories has become acceptable to consumers. The price difference between replacing OEM batteries and replacing battery cells is not very large, so it is generally sufficient to replace the battery directly. The price of a laptop battery is about 1/10 of the price of a laptop. Of course, there is no need to say more about the advantages of performance. It is up to you to weigh the pros and cons of choosing OEM or original ones. Three: Motherboard failure The notebook non-charging caused by the motherboard failure is the most encountered in notebook repairs, because it is a chip-level repair, and the non-charging caused by the general power supply and battery will be solved in the hands of the board-level repairer, and it will not come to us On hand. There are also two cases of motherboard failure, from simple to difficult, the power port-circuit failure first talk about the power port, this is relatively simple, the performance is that sometimes the power is lost when the battery is not used, and the power continues to be interrupted during charging, and the power port is manually activated. It can be judged, and the interface between the battery and the motherboard is soldered to cause non-charging failure. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the chemical reactions during the charging and discharging of nickel-cadmium batteries?