Here are the methods and steps for replacing the UPS battery:
1. After receiving the notification that the battery can be replaced, the battery replacement implementation engineer will go to the site to prepare for the work: ensure the input power of the UPS main unit, check the registration of new and old batteries, seal the smoke detector of the fire protection system in the equipment room, prepare carbon dioxide fire extinguishers, etc. Related work. Before replacing the battery, make relevant registration records for the UPS main unit, the old battery pack, the battery monitor, etc., especially the placement of each layer of battery and the wiring of the battery monitor. Mark the picture and draw the connection diagram. Ensure that the battery pack is replaced and the original condition is the same.
2. After everything is ready, replace the battery, disconnect the connection between the UPS main unit and the battery pack, and disconnect the UPS main unit from the battery pack to ensure the safety of the staff when replacing the battery. The battery of the original battery pack is disassembled, and the battery replacement implementation engineer is responsible for the battery disassembly work, and the relevant auxiliary technicians carry out the handling of the old and new batteries. When removing the old battery, place the removed battery cable and the battery terminal screws neatly in the box to ensure that the machine room is clean and clean. After the old battery is removed, place the old battery and the old battery holder neatly in the position specified by Party A. Place the new battery rack assembly in the set position, and start to install the new battery. Place the new battery on the battery rack, so that the position and direction of the new battery on the battery rack are best adjusted. Check whether the battery terminal cable is secure after connecting a group of batteries; check whether the battery pack's total voltage is normal, etc., and the battery's positive and negative terminals should be connected correctly.
3. After replacing the battery, check the total voltage of the battery pack and the wiring of the positive and negative poles and the neutral line of the battery pack with a multimeter. After ensuring that the battery pack and the UPS main unit are normal, close the switch of the battery pack to restore the UPS uninterruptible power supply system to normal operation. Then check the UPS's working voltage, current, charging voltage, working status and other conditions and make a record. One person observes whether the parameters in the LCD screen of the host are consistent with the actual ones, and the battery time parameters are debugged to ensure that the battery will not have an erroneous alarm prompt during the normal life. After the UPS main engine is debugged normally, disconnect the input power switch of the UPS main unit to simulate the interruption of the mains power supply. Test whether the UPS system can be normally converted from the mains to the backup power supply of the battery pack to ensure the normal operation of the equipment in the equipment room cabinet. After the battery replacement work is completed, clean the UPS room, clean up the debris, and ensure a good environment in the UPS room. Prepare for the work done in the equipment room before restoring the battery replacement. Also, charge the new battery pack for about 24 hours to ensure that the new battery is fully charged.