[ubuntu] daru3 battery charged but laptop shuts down when AC adapter is removed

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http://ubuntuforums.org – Hi guys, my daru3 has been cruising along until a recent power supply problem. I normally get about 2 hours to a charge but recently, after using up most of the battery power, shutting down, and recharging, the laptop stopped powering up unless the ac adapter was plugged in. If the AC adapter is removed, the laptop shuts down immediately. Here's where the system says my battery is: Code: user:~$ cat /proc/acpi/battery/BAT0/* alarm:                  unsupported present:                yes design c (Hardware)