OK, it's a Acer Aspire 9300. Someone brought it to me, they thought the battery had died and bought a new one. So I discovered that Acer doesn't really have anyway to calibrate a battery...either know with a new battery you really shouldn't have to. So the situation is that if I take the new battery out, and unplugged the AC Adapter, help the power button for 20 seconds like the acer website says to...plug in the ac power and its fine. I put in the new battery and press power, nothing. Plug in the ac power and it boots up, but...device manager sees the battery, I try to open power management and acer has this thing called eManagement and stuff that's supposed to help with these things and then I get an error message saying index is out of range...I'm at a loss and the acer website to even email their technical support isn't working. any suggestions would be great.