Is my battery dead?

I recently got a brand new 9-cell battery for my Aspire One, and it has been great until now. I left my laptop in sleep mode with about 60% charge remaining, and in the morning my laptop would not start. When I clicked the power button the orange light just flashed. So I took it home, left it on the charger all night (had a green light), and now it won't start again. I plugged it in, and Windows and BatteryBar are both showing 0% charge remaining. If I remove the AC plug it will stay on for a couple minutes then die again. Is my battery just completely dead?

 

Sounds like it.. get it replaced, most batteries have at least 3-6 months warranty.

 

Sounds like the battery has gone in to latency, i.e. the charge in the battery is negative. Try leaving it on charge for a couple of days or what I do is give it a higher dose of voltage (VERY UNSAFE).

Otherwise just get it replaced.

 

Seems unlikely that one night in sleep mode would kill the battery outright unless the battery or charge circuit is at fault. However battery care is a bit of an art and can depend on the type of battery. It really is worth reading up on this. In your case there may be a bios fix as the aspire one has had charge issues in some cases and at least one bios fix has been made. Check your bios version and have a look to see if it might have been fixed, then decide if ou want to risk a bios update.
As the battery sounds new, you could get a replacement?

 

I have a 90-day warranty, so I guess I will get it replaced. It really bothers me that this happened, though. Especially after it was working so well.