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5. Maintenance
5.1 Battery Maintenance
The battery is key component of the UPS. The battery life depends on the ambient
temperature, charge and discharge times. High ambient temperature and deep discharge will
shorten the battery life.
1. Sealed maintenance-free lead –acid battery be used in the standard. When being connected to
the utility power whether the UPS has been turned on or not, the UPS keeps charging the
battery and also offers the protective function of charging and discharging.
2. Keep the ambient temperature between 15
℃
and 25
℃
3. If the UPS has not been used for a long period, charging is recommended at the intervals 3
months.
4. Normally, the battery should be charged and discharged every 4 to 6 months. Charging should
be begin after the UPS shout down automatically in the course of discharging. In the regions of
hot climates, the battery should be charged and discharged every 2 months. Moreover, the
standard charging time should be not less than 10 hours.
5. Batteries should not be replaced individually. All batteries should be replaced at the same time
following the instruction of the battery supplier.
6. Under normal conditions, the battery life lasts 2 to 3 years. In case if the battery is found not in
good condition, earlier replacement should be made. The battery should only be replaced by
qualified service personnel.
Note:
1.
Prior to battery replacement, the UPS must be turned off and disconnected from utility power.
2. Metal objects such as rings and watches should be removed.
3. Use the screwdriver with insulated handle. Tools and other metal objects should not be placed
on the battery
4. Short circuit or reverse connection between the positive and negative terminal of the battery is
strictly forbidden.
