I have a W810i, and my last charger that came with the phone was beginning to fail. So I explored the option of a new charger, hoping that I could find one for dirt cheap, and hoping that it was an issue with the charger and not my phone. Needless to say, when you can get something for 2 cents, which I did (plus the $2.98 in S&H;) that is a great deal in any regard.It works. Plain and simple my W810i has survived falling down 500 foot mountainsides, water damage, as a doggy chew toy, flying out of my lap from the car onto hard asphalt, who knows how many times, and so on, and I am glad it will continue to survive for hopefully at least another year or two.The one problem with this charger is it is a little snug when I plug my phone in, and occasionally the phone will keep beeping (signaling it is beginning to charge) until I unplug it and plug it back in. Just an issue with an old phone I guess, and a charger that may be slightly too big. Other than that I am satisfied!