Non-apple adapter for iPhone I bought a used iPhone 3G.  Came with an adapter called I-Tec electronics. Will this damage my iPhone? A warning message appears when I charge it.  But it does charge.  Just want to know if it will damage iPhone.
Looking up for the I-Tec T7001 Iphone 3G charger is safe to use, it is UL approved.


  COMPATIBLE WITH IPHONE &amp; IPHONE 3G/3GS; CHARGES IPHONE FROM ANY WALL
  OUTLET; FEATURES A SNAP-IN POWER UNIT TO ALLOW USER TO CONTINUE USING
  PHONE WITHOUT INTERRUPTIONS WHILE CHARGING; FOLD-AWAY PRONGS FOR EASY
  TRANSPORTATION; 6-FOOT LONG CABLE; UL APPROVED


UL is one of several companies approved to perform safety testing by the US federal agency Occupational Safety and Health Administration (OSHA)