Bought a spare battery for my son's canon sd500 through Ebay. Got it for .1 cent. Charged it up till the green light came on and it lasted for about 5min if that. Tried it again and did the same. So basically the ones they sell on Ebay for a fraction of the ones that cost $40 are a piece of crap. Right???Did this happen to anyone??? The thing looks just like the one that came w/the camera. Pisses me off. Must of come from my old neighborhood in N.Y. Not even worth sending it back. With shipping and handling it cost me about $7. Dam! Anybody know a good place where you can buy some at a reasonable price?