Should I replace my iP4 battery myself?

My warranty is up tomorrow dec 28th. I'm running iOS 5. With normal use the battery seems fine except for when I start playing games and taking pics. That's when it starts to drain pretty quick. I think I've pretty much killed the battery cause ever since day one of owning the phone I've been using it like crazy. I think I might be an iPhone addict lol.

So should I just go ahead and replace the battery myself or what?

 

This is weird. I let my battery run completely down yesterday. I put it on charge for the rest of the day. I unplugged it before going to bed and making sure all apps were closed out. I check it the next day and I see this.

 

I finally figured out what was draining my battery so fast. I'm now getting much better battery performance and can now play Angry Birds for more than 30 minutes without the battery going dead

 

Since I have multiple email accounts they was allllll set to fetch. I had fetch new data and push set to off but when I went to advanced settings I noticed that each email account was set to fetch. I switched them all to manual and bingo. Strange I know but now my usage an standby time is no longer equal.

So if anyone is having poor battery performance I would suggest looking into this.

 

I am an iPhone addict lol. I recently acquired an iPod Touch so that gives my iPhone a lil break lol.

 

A friend of mine told me if I could get it working then I could have it. I told him I really didn't need it cause I have a 120GB classic and my iPhone but he insisted that I keep lol. I went ahead and restored it and put some music and a few games on it. So now while I'm home I just use it most of the time.

Yeah I kinda hate having both also. Only time I bring it along is when I want some tunes in the car.