I bought a used N900 back in September and the battery life isn't great in either of the original genuines. In the better one, I can make it through the day if I use less than one hour of all of the following added to together: music, 3G data, maybe a few minutes of basic games, fumbling through the application grid for a minute or so a few times a day. Problem is, if I do that, my battery can't make it throughout the 12 to 15 hours of my day.

Again, this is only maybe 10 to 15 minutes of 3G data, wifi completely disabled (wifi-switcher), 25 to 35 minutes of music, 5 to 10 minutes of interacting with the OS itself, power kernel running on 250 to 600Mhz, stock speeds, or sometimes 600 to 600Mhz (I noticed the OS is way way better if you remove on the spot scaling. Normally this may seem bad for battery but since the processor idles at 2 to 5%, it can't be too bad. Screen brightness is always at two out of five.

I'm going to purchase a genuine battery in the next few weeks and I was wondering what I should expect out of it. Can anyone with a newish genuine battery report:

1 What they do when the phone isn't in idle.
2 For how long they do it daily.
3 Kernel, clock speeds, screen brightness.
4 How many hours their phone will make it before hitting 20%

Thanks.

I know it seems excessive, but if I constantly used the phone starting at 8 AM, running only one to two applications at a time, I could kill the battery with 3G web browsing, listening to music (not at the same time), and watching a 20 minute video by 10 AM.