These things last nearly forever. Buy one and never look back.

yesbuy.net has poor ratings at resellerratings.com, wish I had checked first. Very slow to ship, don't bother to email them because they do not reply so if you have problems you are probably out of luck. They charge your credit card before shipping and I wonder if they actually ship. Seems like a scam, best to pay a little more and buy from a real online vendor.