BE550G did not kick in

[Anonymous user]

I bought two BE550G and the only things connected to it are my Mac-mini and its monitor. 

When the power went out, the battery did NOT kick in and both my Mac and monitor were switched off. Then, I hear 4 beeps every 30s.

Why?

[BillP · Accepted solution]

Hello Arthur, 

Good day to you. There could be several reason why that will happen. 

You can reference to: http://www.apc.com/us/en/faqs/FA158811/