Hey guys

this is a lot of posting lol but I got lots of questions..

Okay... here goes

As you guys know Lithium Ion batteries arn't cheap and cost a fortune.

My question is.

What does OEM stand for and

Are the generic batteries available online as good as the official one? I've read in some auctions that they are just as good or bettor but they are like a fraction of the price and you know the old saying if its to good to be true then it must be.

I think I read that saying here lol..

But anyways for example

The NB-4L Canon Battery I have cost 70$plus tax at retail stores.. the generic ones selling online is roughly 10$.

Now what do you guys think. Is it just the name we pay for or the official one of higher quality?