So I was installing Windows 7 on my Aspire One today and accidentally tripped on the power cord. It was then I realized my battery wasn’t charging. When I unplugged the AC power adapter, the battery’s LED was blinking orange. I removed the battery, and put it back again, it was still blinking. I did a quick search and found this forum: http://forum.notebookreview.com/showthread.php?t=275473 and their advice was:
1. unplug, and remove the battery
2. press power button for 30 seconds
3. plug in AC and start machine
4. If it boots up alright, replace the battery
This solution worked for me and the battery was charging up again. Thank goodness else I would have had to buy another battery pack.
being in tech 
great tip…i’ll be getting an Aspire One soon, does Win7 Aero work on it?
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May be the problem was in a protection for your battery. You can solve this problem installing a BIOS upgrade, than you can download from the next link:
Bios upgrade to Acer Aspire One 150
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