How long is the battery life of the UPS power supply?
Charging voltage:Because the UPS battery belongs to the standby mode, the city power is in the normal state of charge and will only be discharged when the power fails. To prolong the life of battery charger, UPS generally uses the constant pressure limiting control, after the battery is turned into floating state, each section of the floating voltage set to about 13.6V. If the charge voltage is too high, the battery will be charged, otherwise the battery will not be charged enough.
Battery charging and discharging current is generally expressed as C, and the actual value of C is related to battery capacity:For example, 100AH's battery, C = 100A. The optimum charging current of lead-acid battery is about 0.1C, and the charging current should not be greater than 0.3C. Charging current is too large or too small, will affect the battery life. Discharge current is generally required between 0.05C and 3C, UPS can meet this requirement in normal use, but also to prevent unexpected situations, such as battery short circuit, etc..
Type UPS battery generally can be divided into the maintenance free battery and battery for lead-acid batteries, lead-acid, taking into account the load condition, environment, service life and cost factors, in order to ensure the safe operation of the system is reliable and stable, the general UPS battery suggested about 5 years to replace one, the specific needs of the actual circumstances of the case.
The environmental temperature has a great influence on the battery:If the ambient temperature is too high, the battery will be charged to produce gas. When the ambient temperature is too low, the battery will not be charged enough, which will affect the service life of the battery. Therefore, the general requirements of environmental temperature at about 25 DEG C, the UPS value of the floating voltage is set according to the temperature. In practical application, the battery is usually charged in the range of 5 ~ 35 DEG C, and the capacity of the battery and the service life of the battery are greatly reduced when the temperature is lower than 5 DEG C or higher than 35 DEG C.
The effect of discharge depth on battery life is also very large:The deeper the discharge depth of the battery is, the less the number of cycles it uses, so deep discharge should be avoided. Although UPS has a battery low potential protection function, the general single battery discharge to about 10.5V, UPS will automatically shut down. However, if the UPS is in light load discharge or no load discharge, it will also cause deep discharge of the battery. The so-called discharge depth refers to the user in the use of batteries in the process, let the battery release capacity accounted for the percentage of its standard capacity
