Yeap same here although not as drastic.

 

I've noticed the same thing with mine. But I think mine is due to the fact its been over clocked and I've used this thing A LOT. It might just be that the battery is getting old. How long have you had the phone?

 

My awesome uncle gave me a 2,000ma portable charging unit to use with my phone, if I can't get to an outlet. I'm using it as I type this. It's something like this one:



That's saved my bacon many times. Mine is brass colored. I plug it in when my phone has about 50-60% left in the tank. The F3 has a 2,450ma battery, so it works out for me. It usually takes about 6-7 hours for my phone to get to 50%. I have tried to improve this by removing most of the social media apps I use (at least the ones that have decent mobile web versions). I've also turned off auto sync. Social media apps are usually the culprit when it comes to battery drain, especially facebook. Extending sync to four hours and turning off notifications helps a little, but that app also sucks a lot of CPU!

 

I'd love that, too. So far, taking out the social media apps and turning off auto sync seems to be working for me. My phone's been away from a charger for 13 hours, and I have 71% left. I haven't watched much video, mostly web surfing, a few phone calls/texts, and a little bit of internet radio (through wifi) via tunein.