How to get a UPS to turn on without being connected to AC?
That would seem easy enough. But it doesn't work. My UPS works fine on the battery if it is connected to AC and then unplugged while turned on. However I can not get it to trun on without being connected to AC.
What do I do? I have tried two different UPSs.
I am including ictures of my UPSs.
The white one is APC 280VA model.
The black one is 650VA APC model.
I would prefer to use the black one but I could use the white one.
Thanks for any help.
If you need more info just let me know.