for me is also the type of user, using battery drains very quickly, if it can not last long ..
the only thing that made all the difference for me was setting underclock when in standby ..
Let me give you my example:
I have a Motorola Atrix (CM7)
screen on = 1GHz
wifi off (turn on only when I use, but can be used to "political inactivity")
Bluethooth off (I do not use)
Sync off (turn on from time to time and do the sync, do not let on at all times, also drains the battery)
Screen off = 912Mhz
Off 3G, only 2G
I also use droidwall and blocking access to the Internet from almost all my apps, with the exception that I do not want blocked. (blacklist)
---because manufacturers do not make larger batteries???
---because with so much technology in the devices has not had any moron that made the backs of smartphones solar cells to help recharge the batteries???
"In the case of my country that would be quite functional"
-----I sometimes feel I have a maverick v8 (ATRIX), but my gas tank (battery), is nothing but a bottle of coke .-----------