[Trisquel-users] Power consumption is more with trisquel 5.5

[niyaschirayakuth]

In my hp probook , trisquel 5.0 gives a battery life of 4:30 hours. But when  
I installed trisquel 5.5 it only gives maximum of 3 hours. How can I reduce  
battery consumption in 5.5?
Also brightness resets into maximum after every reboot. What should I do?