These batteries, which I bought in 2012 were guarantees be called until 2020. I bought to use with my Samsung 3D glasses. The manual says that Samsung battery is more or less for 30 films. However, the original battery (Samsung) held more than 50 films. My purchased batteries here ... take 2 or 3 films to the fullest! And now that I have used the first 5 at a rapid rate, I want to use the 5 remaining, who have never been packing out, and were kept cool and dry. Impossible! More no charge! We are in 2014, so six years before the end of the guarantee, and no battery has any value. So it is indeed a total scam. The price is very low, yes, but buying a cheap product of such low quality is like throwing money out the window. I am furious that Amazon sells (indirectly it is true) this kind of product made in China not worth a nail. It is an accomplice of a scam. STAY AWAY!