I have an APC Smart-UPS X 1500V which I just connected to a power source. When I turned the device on it was beeping and giving a flashy red light at the most right icon of the control panel.
The error message "Warning State: Connect Battery" was displaying on the screen of the control panel.
I tried resetting the device to factory defaults.
What is causing this and how can I fix this issue?
16 Reset to default
