Ever wondered how well the custom Android ROMs for the Galaxy Nexus fare against each other when it comes to battery usage? If so, the table below (built by a passionate modder by the name of Shayes) should provide a good reference point, although there is one major variable that was not taken into consideration when the table was built. But let’s go through the details before I’ll explain what I’m talking about.
Now for those variables that I was talking about at the beginning of the article: as it turns out, Shayes tested the custom ROMs with the kernel the devs included in their package. A much more elaborate test, in which all kernels compatible with each ROM are installed and tested one by one, should have provided even more realistic results, as the kernel is also highly responsible for the amount of battery used by the OS.
What do you guys think? Is this test conclusive, even if Shayes did not change the kernel included by the devs in the custom ROM packages? Is such a test useful to anyone at all? Let us know what you think in the comments section below!
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It’s really not a scientific test. It must be measured empirically with a very well defined control.
In the end, as long as you don’t have a wakelock issue from a bugged/rogue app, idle times mean nothing, it’s such a minor percentage of battery usage. Once you start using the phone, it drains 10-20x faster.
Please read my explanation for why I did what I did: http://rootzwiki.com/topic/20239-did-a-test-on-the-roms-that-are-best-on-battery-usage-here-are-my-results/
and check out the original article with my reasoning: http://shayessays.com/2012/03/08/testing-the-battery-usage-of-the-most-popular-roms-for-the-samsung-galaxy-nexus/