Applicable Systems
Sunny Central Storage
Symptoms
Voltage has dropped below the minimum operating threshold. System performance is degraded or halted.
Possible Causes
- Battery cell degraded or failed
- Connection resistance excessive at a terminal
- Charging system output insufficient
Troubleshooting Steps
- Step 1: Measure individual cell or module voltages
Low cell or module identified - Step 2: Inspect and clean all electrical connections
Connections clean and tight - Step 3: Verify charger output and charging circuit operation
Charger delivering rated output
How to Reset
To reset: Clear the low voltage alarm after restoring voltage to specification.
Source: SMA Battery Inverter Manual, SMA Solar Technology AG
Category: Battery