Also, it should have some surge protection, and good ones even condition the power. Randy Singer has written about that many times.
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On Oct 25, 2019, at 4:14 PM, Daniel Settles wrote:
Howdy.
One should not plug large power-draining equipment like a laser printer
into a UPS battery box.
A. It's not necessary. One can print when power comes back on.
B. The primary purpose of the UPS is to allow enough time to save
files and shut down computer when the power goes off.
Denver Dan