How to fix a Gtec ZY120 UPS when it warns 'Battery not connected'?
- SSamantha ThompsonAug 4, 2025
If your Gtec UPS displays a 'Battery not connected' warning, it indicates the battery is not properly connected. Check if the battery switch is turned off or if the battery cables are disconnected. Ensure that the battery switch is on and the cables are securely connected.