Why is the lithium battery not fully charged?

1. The lithium battery pack cannot be charged. The lithium battery pack in a pure electric vehicle cannot be charged when the battery is charged. The reasons can be divided into: wrong charging head or common failure of charging head; rain shield maintenance or lithium battery protection board invalid; lithium battery pack and high-power electrical appliances Short circuit outside. After dealing with the safety hazards, we searched for: Whether the charging head is connected wrongly, whether the positive and negative power plugs of the lithium battery pack battery are connected wrongly; Eliminate the maintenance of the lithium battery protection board of household appliances, restart the MOS tube, and accurately measure the MOS Regardless of the driver's operating voltage; check whether the wiring is broken. 2. Lithium batteries cannot be discharged. Lithium battery packs in pure electric vehicles cannot be charged and discharged normally during application. The reasons are as follows: low working voltage of lithium battery packs, weather shield maintenance or control board maintenance; weather shield or control board damage; positive and negative charge and discharge Wrong connection; the line is disconnected or the power switch is not turned on. In view of the poor condition, it can be solved by recharging the lithium battery pack battery, looking for heat preservation and heat insulation board or route connection. 3. The lithium battery is not fully charged. When the lithium battery pack for pure electric vehicles is used in the circulatory system, the battery is not loaded when the lithium battery pack is charged, and the battery charging is terminated when the working voltage is disconnected. This is due to the inconsistent power consumption or volume of a single string of lithium battery packs. If the power consumption is large or small, the lithium battery protection board is used to maintain the battery after charging, so that other strings of rechargeable batteries will terminate the battery charging process in the past when they are not filled. Under such conditions, the balance charging head can be used to charge the lithium battery pack to keep the working voltage of each string consistent. If the volume is very different, it is necessary to replace the rechargeable battery with a large difference. But the key is to carry out volume inspection and matching of lithium batteries before packaging lithium batteries, otherwise the inconvenience of serial connection and disassembly will occur. Fourth, the battery life is short. Lithium battery packs in pure electric vehicles will quickly release current when used. The reason is: rechargeable batteries are not filled; the working voltage volume of a single string varies greatly; the lithium battery pack has a micro-short circuit failure or the lithium battery pack self-releases current. Large, causing the lithium battery pack to run out as soon as the battery pack is filled. Regarding the above-mentioned poor rechargeable batteries, lithium batteries can be recharged or replaced with poor rechargeable batteries. 5. The voltage of the lithium battery is unstable. The lithium battery packs of pure electric vehicles are all composed of several lithium batteries in series and parallel, and the consistency of lithium batteries is very high. Although the manufacturers of lithium battery packs have done the matching of lithium batteries, due to the error of the rechargeable battery, lithium In the whole process of long-term application, the battery pack will cause the working voltage of each string of rechargeable batteries to be inconsistent, which will cause the entire set of kinetic energy output to the lithium battery pack to decrease, and then suddenly the power supply will be turned off during the application, the schedule will drop sharply, and the charging will not be possible. Satisfied with electricity, unable to charge the battery and other problems. 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: Why does the lithium iron phosphate battery swell?