Will ups battery backup time how to count?
Battery current / load total current = backup time, the load three-phase total current is 100A, the battery is 12V100AH, regardless of the number of blocks in series, parallel 2 group is 200/100 = 2 hours, if it is a group of batteries Is 100/100 = 1 hour, and so on.
Battery capacity * Number of battery blocks * 12 * 0.8 / total power = backup time.
This is the theoretical calculation, the actual discharge, then there will be a lot of error, which is related to the battery discharge curve, 100AH battery with 100A discharge, put an hour, about 40 minutes to the battery cut-off voltage, and to protect the battery, UPS Will stop the discharge.
