Poor Battery Life on Samsung Series 5 NP550P5C

Poor Battery Life on Samsung Series 5 NP550P5C

I recently bought a Samsung Series 5 NP550P5C and swapped out the 750GB
HDD for a 250GB SSD then installed Ubuntu 12.04. For the most part its
been working very well, except for the battery life. Upon full charge it
claimed to have only 2:30 remaining battery (with Win 7, max battery life
was supposed to be 6:30). Now I've been draining the battery and its said
it has ~0:30 for the past hour or so. I ran PowerTOP and nothing really
stuck out:
Power Consumption Summary
176.5 wakeups/second, 0.0 GPU ops/second, 0.0 VFS ops/sec, 9.1 GFX
wakes/sec and 1.8% CPU use
Usage Events/s Category Description
0.7% 62.9 Process /usr/bin/X :0 -auth /var/run/lightdm/root/:0
-nolisten tcp vt7 -novtswitch
0.0% 18.7 Interrupt PS/2 Touchpad / Keyboard / Mouse
0.1% 16.0 Timer hrtimer_wakeup
0.0% 14.8 Process syndaemon -i 2.0 -K -R -t
0.2% 12.4 Process compiz
0.0% 9.7 kWork ieee80211_iface_work
0.0% 5.6 Timer menu_hrtimer_notify
0.1% 4.9 Interrupt [6] tasklet(softirq)
0.0% 5.2 Timer tick_sched_timer
0.0% 2.4 Process gnome-terminal
I also created the suggested startup file and restarted the computer. Not
only did that not make a difference in the supposed battery life, it also
didn't change the info in the Tuning tab.
Any suggestions or advice to increase the battery life? Since I've got an
SSD now instead of HDD I was expecting 7+ hours.