My cell phone is 3 years old and the original battery started to die. I didn't want to spend a lot on a new battery because I'm not sure how much longer the phone is going to last. All4Cellular had the cheapest price, some other merchants were asking $25 - $30. I was a little leery of the low price because I read where some companies were shipping old batteries. I ordered it anyway and selected the free shipping option, figuring I wouldn't be out much if it didn't work. Well, I ordered online Tuesday night and it came in the mail Monday morning, which was I thought was pretty reasonable for free shipping. I replaced and charged the new battery and it works great, holding a full charge for about 5 days. It was exactly what I wanted.