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Shallow Discharge Test
A shallow discharge test is conducted to test the battery loop reliability and short-time discharge capacity when the batteries have not been discharged for a long time.
A shallow discharge test can be performed manually or as scheduled. Before performing a shallow discharge test, ensure that:
- The UPS is working in normal mode; float charging or hibernation has lasted for 2 hours after the SOC reaches 100%; and the load ratio fluctuation is less than 10%.
- The UPS has generated 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 has generated no alarms related to lithium batteries.
Scheduled Shallow Discharge Test
- On the home screen of the UPS LCD, choose and set Sched. shallow dis. test to Enable.
- Set Sched. shallow dis. test time and Sched. shallow dis. test interval as required.
After the setting is complete, the system will perform an automatic shallow discharge test based on the settings.
Manual Shallow Discharge Test
- On the home screen of the UPS LCD, choose .
- Tap Start on the right of Shallow Dis. Test to start a shallow discharge test.
Notes for Shallow Discharge Test
- When shallow discharge tests are complete, the system records data of the latest five tests. For details about how to view the test data, see Viewing Test Data.
- The shallow discharge test automatically stops in any of the following cases:
- The battery discharge capacity reaches the specified value (10%–50%, 20% by default).
- The battery discharge voltage reaches the warning threshold (calculated in real time by battery management).
- The load ratio fluctuation exceeds 10%.
- A fault alarm is generated on the LCD.