Sent from my Nexus 4 using xda app-developers app
I just can't seem to get such great battery life. I'm almost 13 hours on battery with only 1 hour and 18 minutes of screen time and my battery is down to 68%. For some reason Android OS is using 40% (the screen is using 40% as well). I'm in the same boat as you in terms of wi-fi always being on, but I'm on M-Kernel and a custom ROM rather than stock. I really should give the stock kernel a go and see how that manages.
Other things can have a negative impact on battery life, I do have tons of apps, but I always manage which ones are running. Also clean installing a ROM is always safer and will probably give you some better battery life due to everything being clean. Many apps do have instances of running in background so it is helpful to check every now and than.
Also disabling GPS will give you some extra time per charge. I always disable it. And I keep WiFi location enabled.
Sent from my Nexus 7 using xda app-developers app
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