For me it's a giant issue, I managed to get 8 hours battery life on my Gentoo linux 13"/1.3Kg 3 years old laptop while I can't reach 7 hours with my phone? If I keep asking is because I love cm9 but I get better battery life with sense roms, considering there are peoples who reach 24h+ autonomy with the very same rom I think there is a plenty of space for optimizing my cm9. If it hurts you I will stop asking and try to do something on my own (surely with less results considering I'm a total android noob). I just flahed ViperS to see how many hours I can get under the same workload with a sense rom.
Optimizing is a very finicky term, as there isn't much to do when it comes to this ROM. Either you have good battery life, or you don't. It isn't you specifically that we're complaining about, its the hundred plus other posts in this thread and in most other development threads here that we have a problem with. Take a few minutes to do a thread search, there are A LOT of posts of people trying to help the trolls out, such as isolating any potential drainage issues with BetterBatteryStats.
I'll be honest, I have been typing this whole message out on my device and I STILL have full battery. Battery life varies greatly across devices. Sensations may be nearly identical across manufacturing (save for the touch panel ) but on a hardware level, every device will behave differently in different scenarios, and device usage also varies across users.
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