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Going on holiday, need a ROM with good battery life

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linux-howto

http://forum.xda-developers.com – I am currently on CM9A13 by Dhiru. I love ICS for al its features. But the battery life is very poor. Even at night the phone discharges 30% or so. I am unable to understand from the BetterBatteryStats and I am attaching some screens if anyone can help me understand the reason for battery drain. I have come from GB to ICs without factory reset and always just wipe cache/dalvik and format /dbdata. Is this one of the reason for poor battery life? Can I get a better battery life if I flash CM9 fresh. What should be the procedure to follow in that case? Which base and then CM9? I am going on a h (HowTos)