DEFINITE solution for battery on the arc (or any android actually) yes its that easy!
OK after i got my Arc S i already saw better battery than my old X10.
but after a while it started to get all "android" on me again in terms of ****ty battery.
after using better battery stats and digging all the web for solutions on the subject (yes i got pretty obsessed about battery ever since i had android), i've pretty much found out 3 simple stuff that pretty much takes up most of your battery on standby and even actual use of an android phone.
before i did that i woke up 8 hours later just to find out that at night on standby my battery ran from 100% to 86-90% when i woke up. (on my x10 i woke up with 76-80% lol)
keep in mind im a very heavy usage user on my android and i do literally EVERYTHING ON IT.
anyway 3 simple stuff to do:
1. log out of latitude, drains the battery like crazy.
2. disable auto sync for gmail, contacts and regular email (i use hotmail so i use the email app, dont have gmail)
3. be connected to your home or office wi-fi as much as possible.
keep in mind i do have whatsapp in the background and other regular apps that still ran as a service but they dont drain battery much apparently (i thought they were always the problem btw)
i unplugged my arc s from the charger with 100% fully charged battery at 4am and went to sleep..
..woke up 11 hours later at 3pm (yes weird day lol), had 18 missed calls, 6 sms messages and 5 voicemails which means the phone had the screen on for each call and the speaker played my ringtone every call and sms and even voicemail notification plus i had my alarm clock which i kept pressing the snooze on..
i was amazed to be with 96% after 11 hours!!!!! OMG
at the same day at 11pm i was left with 27% battery after all day had 1:20 hours voice calls, 2:50 hours screen display on.
i was also outside and im always on 3g and also used my gps on google maps for about 20 min.
finally happy about my frikin battery on my android device !!
custom gingerbread rom with ice cream theme,
Sent from my amazingly gorgeous and sexy Pure White Xperia Arc S [=