I don't know about you guys but I bought this battery here at Amazon
http://www.amazon.com/2050mAh-Batter...tery+For+Nokia

Advertised as 2050 mAh
I tested and it charged up full to 660mAh or more.

Don't let the numbers fool you because this battery is AMAZING!! I believe i can use the phone for 2 straight days w/ regular usage such as text and phone call and music which mean it can last up to 48hrs of normal usage. Now compare that to my stock battery....there's no comparison, my stock battery from going to work and leaving work is all but dead for normal usage. Also, this NEW battery DOES NOT DRAINED!! I think if i leave it alone and never use the phone, it will last forever...well maybe not forever, but weeks and weeks. The reason i say this is because from the time i went to sleep to waking up and looking at the batterygraph, i see virtually a straight line slight slight unnoticeable decline for 8 hrs!!! That means it DOES NOT drained like the stock battery. I don't know about any other batteries like the SCUD or how those perform but this battery is the bomb so far. I just ordered another spare one.