12.10 consumes too much battery

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http://askubuntu.com – I have trouble with battery life on ubuntu 12.10 Before I installed ubuntu 12.10, ı was user of ubuntu 12.04 LTS. My computer is HP Probook 4530s. On 12.10 my battery life is less than 1.5 hours but on 12.04 my battery life is 2.30 - 3.00 hours. Actually, İt sounds me crazy because sometimes i had to use my laptop portable without ac power. Could anyone suggest anything about my problem? (HowTos)