Motorola Photon 4G :: Battery Drain When Using Cellular Data?

I saw similar questions in the forum but none of them had a working answer and I tried all the different solutions and none of them worked.Also none of the other threads described the issue exactly as I am going to describe it below:When spending the entire day within WiFi signal or when disabling cellular data, my phone lasts for 16+ hours with at least 30% battery leftThis includes normal use of the phone - some browsing, some talking and some playingWhen out of WiFi signal and with cellular data enabled (i.e. phone is on 3G) without using the phone at all.

screen is locked the whole time, the phone heats up and battery is drained within 2 hoursLooking at CPU usage when the phone heats up shows that the only component using relatively a lot of CPU is "Android System" but always less than 50%Looking at the battery usage "Display" and "Phone Idle" are always on topThe interesting part is looking at data usage - On the instances that the phone was heating up while on 3G and not doing anything with it (no application is running and the phone is locked)"Contacts"application is always on top with about 1MB of data usage per hour and no other application is even close to itAs an experiment I removed all the accounts from my phone so that I have no contacts at all and no server to sync or try to sync the contacts with and the result was the same - phone heats up, battery drained and Contacts is on top of the data usageMy conclusions from this are that the reason for the battery drain is usage of 3G data and that the Contacts application is the one in charge of the data usage.