This and seemingly all the batteries for sale today outside the real name brands are a scam. Read the few reviews on every battery for any of the laptops available here or anywhere on the internet, besides the OEMs and the folks like Duracell, Eveready, etc, are basically using cells that are rejected from manufacturing, purchased by these folks who make these knockoffs, and sold at a tremendous profit. They cost about $1 to make, are priced at about 50x that amount, last about 3 months if you are lucky, have no warranty.I've experienced several of these from laptops to cordless phones to iPods, and they all fail after a few months. I have had enough and am trying to tell others about this.I will now go and pay the exorbitant amount that Dell wants for a battery, but at least I get a 1 year warranty on it.Scott