Up for sale is a brand new Casio NP-20 rechargeable battery. I purchased this brand new. But it turned out that my camera needs an NP-40. Too much hassle returning this online. So it's a spanking new battery up for sale. Amazon retails the battery for $25. I'm asking $20 shipped within the continental U.S. If you are interested, please send me a PM. http://www.amazon.com/gp/product/B00008ZLHB/qid=1135335260/sr=8-1/ref=pd_bbs_1/104-1870876-5736705?n=507846&s=photo&v=glance