What should I pay attention to when UPS power batteries are connected in series and parallel?

Precautions for the use of UPS power batteries in series and parallel connection. If UPS power batteries are connected in series, everyone is familiar with them. I have learned them in physics class in elementary school. Connect the positive terminal of the first battery connected to the series battery (new voltage) to the first battery. Second, the negative terminal of the battery, and so on to connect the battery. Theoretically, UPS power batteries can be used in parallel, but due to factors such as individual differences and service life of the batteries, it will be difficult to balance between the batteries, which will affect the life. Moreover, if a battery cell fails in a short circuit during use, the connecting wires and battery poles outside the battery will be quickly burned, and even fire and explosion may occur. Therefore, in practice, it is not recommended to use UPS power batteries in parallel. The number of cycles of a normal battery is 500~1000 times. The quality of the charger should be as good as possible, and it is best to choose the one with discharge function. At the same time, when it is found to be short of electricity during use, it should be charged in time, and fully charged, and do not use it after deep discharge. After the ambient temperature drops below 5, its discharge capacity will decrease, including certain requirements for temperature when charging. The connection is reliable and firm, the thickness of the wire used is appropriate, and the heat dissipation between the batteries must be paid attention to. Do not mix different brands of batteries, different capacities, or new and old batteries. Choose batteries with the same performance. When the battery power is low, replace all the batteries. When using lithium batteries in series, use the same type of batteries. Pay attention to the polarity of the battery. If the polarity of one battery is installed reversely, the voltage of the entire string of batteries will be reduced instead of adding a new voltage. The correct use and maintenance method of UPS power battery 1. Check whether the fixing bolts of UPS power battery on the bracket are tightened. If the installation is not secure, the shell will be damaged due to driving vibration. In addition, do not put metal objects on the battery to prevent short circuit. 2. Always check whether the pole and the terminal are connected reliably. To prevent oxidation of the terminal, a protective agent such as petroleum jelly can be applied. 3. Do not use direct ignition (short circuit test) to check the battery capacity. This will cause damage to the battery. 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 post: What are the installation specifications for UPS battery cabinets and battery racks?