EB55 Won't Turn On, Yet is Fully Charged

It has been fully charged. The power block is green. I could read the window. The battery read as full when I unplugged it. But - the power in the house went out, and it was working when I checked it, and this is also the moment that I unplugged it - after the power went out.

However, when I went to power it on 5-10 minutes later, it was not operable whenever i pushed the buttons. Also, when I plugged it in again, the window nor the lights turned on, yet the block still reads green. I checked the manual and pushed the ac and dc buttons at the same time. What else can I do?