I iViking macrumors 6502 Original poster Oct 23, 2006 293 0 Jun 19, 2009 #1 Does the iPhone 3GS's battery need calibration like the MB and MBP's? In other words, are you supposed to drain it completely the first time you use it and then charge it all the way before disconnecting from charging it?
Does the iPhone 3GS's battery need calibration like the MB and MBP's? In other words, are you supposed to drain it completely the first time you use it and then charge it all the way before disconnecting from charging it?