Huawei SmartLi 3.0 - Page 152

1. On the home screen of the LCD, choose System Info > Settings > Battery
Settings and set Sched. shallow dis. test to Enable.
2. Set Sched. shallow dis. test time and Sched. shallow dis. test interval as
required. After setting is complete, the system will perform an automatic
shallow discharge test based on the settings.
Manual Shallow Discharge Test
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Before the test, ensure that:
● The UPS is working in normal mode, the SOC is greater than 95%, the lowest
cell voltage is greater than or equal to 3.35 V/cell, and the load rate uctuation
is less than 10%.
● The UPS generates no battery overtemperature, overvoltage, or overcurrent
alarm. No generator is connected to the UPS.
● The mains, batteries, charger, and discharger are normal. No overload alarm is
generated.
● The SmartLi generates no alarms related to lithium batteries.
1. On the home screen of the LCD, choose System Info > Maintenance >
Battery Maint.
2. Tap Start on the right of Shallow Dis. Test to start a shallow discharge test.
Figure 7-1 Starting a shallow discharge test
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When the battery test is completed normally, the test data is used as common test
data. Record the data obtained from the latest ve tests.
The shallow discharge test automatically stops in any of the following cases:
● The battery discharge capacity reaches the specied value (10%–50%, 20% by
default).
● The discharge voltage reaches the warning threshold (calculated in real time).
● The load rate uctuation exceeds 10%.
● An alarm is generated.
SmartLi 3.0
User Manual (Short-Term Backup Power) 7 Maintenance
Issue 10 (2024-01-31) Copyright © Huawei Digital Power Technologies Co., Ltd. 143