1. Confirmation of UPS A01 is in Normal Status, write down / download alarm log, parameters / configuration.2. Check and record UPS A01 operation/running data 3. Open UPS A01cover, and visually check UPS circuit breakers.4. Thermal scanning for all connections of UPS A01 and batteries, confirm no overheating, no touch any part inside.5. Visually inspect batteries (for cracks, leaks or corrosion, etc.), inspect batteries resistance.6. Close the UPS A01 cover.7. Repeat another UPS B028. Fill in related records.Check and record the UPS load case parameters