Owner reports that it was working fairly recently, but all of a sudden fails to power on.
No signs of life at all. No LEDs lit when connected to charger.
Tried simple power reset / static discharge (disconnect power, remove battery, hold on button for over 30 seconds, reconnect battery and power).
Try charging for a long time in case it’s a discharged battery.
A laptop with a battery discharged to its bare minimum may not power on even when connected to power. This is a built-in protection to prevent further battery discharge of a battery already at its minimum.
That said, it doesn’t work with the battery removed, either.
Doesn’t look like it’s Acer branded, but it has the correct output rating - 19.5V / 2.15A.
It’s rated 19.5V. Using a multimeter, it’s got a reading of 19.37/8, kind of fluctuates between the two.