Three tips for battery maintenance

UI application on November 2, 2017, generally speaking, the ambient temperature is a larger factor affecting the battery life. Here are three tips for battery maintenance. The ambient temperature of the battery shall be kept at 20 ℃ - 25 ℃, which is the best ambient temperature required by the battery manufacturer. The increase of temperature can improve the discharge capacity of the battery, but the cost will greatly shorten the life of the battery. According to the test, once the ambient temperature exceeds 25 ℃, the battery life will be shortened by half every 10 ℃. At present, the batteries used in UI are generally maintenance free sealed lead-acid batteries, and their service life is generally 5 years, which can only be achieved in the environment required by battery manufacturers. If the environmental requirements are not met, the battery life will be very different. The reason for the enhancement of chemical activity inside the battery is the increase of ambient temperature, which will also generate a lot of heat energy. The increase of ambient temperature is also caused by this reason. This is a vicious cycle, which will accelerate the shortening of battery life. The floating charging voltage and discharge voltage in the UI power supply for periodic charging and discharging have been debugged to the rated value when leaving the factory, and the discharge current increases with the increase of the load. Therefore, the load should be adjusted reasonably during the operation, such as the number of computers and other electronic equipment. In general, the load should not exceed 60% of the rated load of UI. In this range, the discharge current of the battery will not show excessive discharge. Because UI is connected with the city power for a long time, in the environment of high power supply quality and few power outage, the battery is in floating charge state for a long time, which will lead to the decline of the activity of battery chemical energy and electric energy conversion, accelerate aging and shorten the service life. Therefore, the battery should be fully discharged every 2-3 months. The discharge time can be determined according to the capacity and load of the battery. After a full load discharge, recharge for more than 8 hours according to the rules. Using the communication function, most of the large and medium-sized UI have operational functions such as communication with microcomputer and program control. After installing the corresponding software on the microcomputer, connecting UI through serial / parallel port, running the program, the computer can communicate with UI. Generally, it has the functions of information inquiry, parameter setting, punctuality setting, automatic shutdown and alarm. After information query, it can obtain the input voltage of mains power, output voltage of UI, load utilization rate, battery capacity utilization rate, internal temperature and mains frequency; after parameter setting, it can set UI basic characteristics, battery maintenance time and battery run out alarm, etc. After these intelligent operations, the use and management of UI power supply and its battery are greatly facilitated. The number of batteries equipped with large UI power supply usually ranges from 8 to 80, or even more. To meet the requirements of UI DC power supply, a single battery is connected to form a battery pack through a circuit. It is inevitable that the performance and quality of some batteries will decline and the storage capacity can not meet the requirements. Maintenance personnel should check and test each battery when one or more batteries in the battery pack are damaged, so as to eliminate the damaged batteries. It is forbidden to mix acid proof batteries, sealed batteries and batteries of different specifications. When replacing new batteries, try to purchase batteries of the same type from the same manufacturer.