Well my battery life is a little better after switching to CDMA only but I am not getting too much green in mobile network signal. If I only do some light texting from a full charge with one or two FB checks I was able to last 12 hours before hitting 70%. But once I.get heavy on Facebook, Twitter, and browser I can probably eat through 10% in a half hour-hour. Would doing a another factory reset be worth it? I already did one when I first upgraded ICS but maybe I should do it again? Or is the fact I have a weak 3G network doing it?
Honestly that could be a possibility i mean i have a regular razr and i do tend to get a little bit better battery life with a full signal because my phone is not having to fight so hard to find signal i hope this helps
Sent from my DROID RAZR in blue! using Droid Forums
Anytime you have a weak signal your phone is going to burn through battery life. That is a proven fact and that is one of the reasons 4G burns battery life unless you are in a strong area. Even when i had my Thunderbolt if i was in Downtown San Francisco i could breeze through a 8-9hr work day with at least 30% left but with light to usage. Normally the Thunderbolt would beg for a charge after at least 6-7 hrs. having said that signal is definitely a lot but one thing people don't consider is web browsing usage. The razor maxx gets up to 8.25 hrs web usage on 4G out of the box and that is not including how many email accounts you have or apps that regularly synch where other Androids get 4.5hrs to 5.5 hrs. every usage time is different. GPS, Web Browsing talk time. When they say 21hrs of talk time it doesn't mean 21hrs usage overall. those things you have to take into consideration also. But signal and display are the biggest battery life killers. When i am on 4G in a bad to decent location even when doing nothing i lose battery life but when i toggle to 3G if the signal is strong i barely lose any.
So with Juice Defender, some smart actions to restrict data when the phone is dark or when I am using my home Wi-Fi, I will just let the screenshot speak for itself: