Battery Problem: Using 3G watchdog for data usage monitoring?

Hi,
I mostly prefer 3G watchdog for data usage monitoring as i think that it serves much higher speeds than other. Downloading applications making voice calls is just too good that even you can't assumed to have but the problem from which i was suffering it eats lots of battery which sometimes become uncomfortable to me. One day i was in my college and it went to shut up. I suffered a lot and that's why i'am hoping to get any other alternative. Please, suggest be another option to deal with such problem. Please, if anyone with better suggestions let me know as soon as possible.


thankyou,

3G mode always use more battery so when you are not using 3G its better to switch to 2G and also make sure you close all unwanted application, they also eat battery.