Fully charged - wont turn on... way bummed - Garmin Forerunner 305 GPS Receiver

If your forerunner seems well charged and it does not come on, then there is a problem. Most likely a faulty battery. Try another battery to see if it will turn on, if it turns on, then replace your old battery with a new one. If it still does not power on, then it seems there is a hardware problem, the gps need to be disassembled and check if there is a component that has loosen connection in it, the connection should be secured tightly, then reassembled back together and the forerunner will be in good shape once again. Hope this helps.