I have an Aspire A515-51G-84SN.
It will only power on with the charger plugged in. When it is powered on the power icon shows plugged in and 0% for battery charge. Also shows 2 blue LED's by the charge plug when powered on and plugged in and 1 blue LED when powered off and plugged in. I have done the battery reset button procedure on the back side and I have uninstalled the battery driver and restarted. Neither of these procedures have made a difference. I did download HWManager to see what it has to show. See below.
This is what it shows when the charger is plugged in.

This is what it shows with the charger unplugged. (It runs for a few minutes unplugged before it dies)

So does this sound or look like it needs a new battery or is there somethings else happening here?