I guess they say "You get what you pay for" because I just purchased this piece of crap off of Amazon for $8 and it dies faster than my stock battery! I figured I would give it a try since it was so cheap. Pisses me off because I did the old "let it charge up for 5 cycles" process and it still sucks.....guess you live and you learn...smh.
I've bought this one too months ago, I've had excellent results, plenty of charge left at the end of the day with moderate use. Yes, you received a bad one, send it back for a replacement. I'm sure the quality assurance isn't quite up to par when they sell them for $8. lol
I'm sorry to hear your experience did not go so well. I posted this battery in another thread and spoke of how great it was. I don't recommend bad products to people. I use my battery like crazy and get about 16 hours. I sure hope yours is a bad battery. I would call amazon and voice your concern. I recently had a defective product and called amazon. They sent me another product at no extra charge. Good luck!!