For 1) I always have my phone plugged in when I'm sleeping, but for during the day if you think it is better, I can give it a whirl.
For 2) I think Juice Defender shuts the access to those off? As I have turned Juice Defender back on.
For 3) I'm at 4 bars on 3G at work here. And usually the same at home.
For 4) I have weather through Beautiful Widgets and set the time to the largest amount of time, and refresh on wake (which is all I really want anyways). I use the AP RSS Feed, and that is it.
Like I said...YMMV(your mileage may vary)...meaning you might experience more/less the same as I based on my recommendations...
Battery Modes are there to be used based on users preference..Maximum turns off just about every thing..basically again what you are doing with JD, so, I dont see where that is a benefit. Nightime turns off a few things, but by manually going in and reducing fetch times and auto-updating on Social Widgets actually on my phone works better. Will it work better on yours, I cant say for sure...
Juice Defender does do what I outlined...but by doing it manually, that is 1 less app that does have to be running in order to make those changes(Juice Defender). In my mind, there is no reason to add and use an app that requires battery to do something I can do myself...
3G signal impacts battery alot, but if you are in a good coverage area, then there isnt a lot you can do to help there..it is what it is. Now, when I am at home, I switch over to my Wireless Router and run off my 20MB cable connection...because WiFi is easier and less battery constraining....
BW is an awesome app, and visually it can be stunning, but it does chew up battery. After using it for awhile and having my settings in it to "refresh" at 16 hour intervals, I got to noticing when i opened up settings in it to change anything, that the "last refresh" time was no where near the 16 hours I had it set to...it was basically ignoring that setting and refreshing "On Waking"...which was impacting my battery life because I no longer wear a watch and instead use my phone as my portable time keeper... Now, I use a Live Back Ground that shows the time/date/battery stat/and wifi status...weather I will pull from Weather Bug when I need it...
