Hi, I am in the middle of a trip in the USA (not my own country), and my phone suddenly died - I'm pretty sure it is the battery (not charging, begins with yellow constant light, then flickers, then this starts over and over). The big problem is, I use the phone as a GPS - and now I don't know my way around.... Where would be the place to look for a battery (in a real store - not amazon or ebay where I would have to wait a few days), what retail store carries them? I am in Daytona Beach Florida.