Best place to buy a canon rebel xti battery?

Question: Best place to buy a canon rebel xti battery!?

I bought one on ebay for CHEAP, and it takes about 7 shots before it dies!. Do I need to buy an official Canon brand one if I want to get 300-600 shots out of it!?

What are the different types of batteries (Li-ion, etc)!?Www@QuestionHome@Com

Best Answer - Chosen by Asker:

I was very reluctant to purchase a non-canon battery for my xti!. I went ahead and purchased one from overstock!.com
I think this is the one I got for my xti!. Check the numbers on your battery and compare to this one or they have many others but mine is a CTA brand!. Over 40 good reviews!.
http://www!.overstock!.com/Electronics/CTA!.!.!.

That battery lasts just as long as my canon battery if not longer!.Www@QuestionHome@Com

First, I am a professional photographer!. I count on my equipment to work every day!.

I buy all batteries from e-bay!. Not used ones but new and not the canon brand but an off brand!. They have always performed better then the canon brand as far as length of time between recharging and overall life span!. Why pay $50 for 1 when you can go get 2 for under $25 that will do better then the canon version!.Www@QuestionHome@Com

B&H
http://www!.bhphotovideo!.com/c/product/34!.!.!.

Let this be a lesson to you, with regard to proprietary batteries!. You get what you pay for!. The NB-2LH is the only battery type the rebel XTi uses!. And yes, you should buy the Canon brand!. I don't trust Impact!. (though I've heard they work)Www@QuestionHome@Com

i would not buy a battery of ebay who know how old it is and how much use it had to options are
http://sterlingtek!.com/candigcamac!.html
http://www!.bhphotovideo!.com/bnh/controll!.!.!.Www@QuestionHome@Com

I always carry an extra battery with my XTi!. I can't remember what brand it is, but I do know that it isn't the Canon brand!. I got it from Best Buy and haven't had any problems with it!. It lasts just as long as my Canon battery!.Www@QuestionHome@Com