Last night I went to sleep with only wifi+sync, woke up after 9hours too see the battery only drop 10%. pretty acceptable to me.
HOWEVER, once I woke up I was browsing the internet for a hour just to see my battery drop 15%
The on-screen time is the only thing that kills my battery, I can play music half hour with max volume and it doesn't even affect my battery by 3%, because it's off-screen.
Well just when I was typing this reply... My battery lost another 1% just staying on my battery history chart.
You can see from the picture how the battery RAPIDLY declined when the screen is on.
HOWEVER, once I woke up I was browsing the internet for a hour just to see my battery drop 15%
The on-screen time is the only thing that kills my battery, I can play music half hour with max volume and it doesn't even affect my battery by 3%, because it's off-screen.
Well just when I was typing this reply... My battery lost another 1% just staying on my battery history chart.
You can see from the picture how the battery RAPIDLY declined when the screen is on.