I have two iPads (a regular and a mini), 2 MacBook Pros (1 x 15″ and 1 x 17″) and have had the last three iPhones. EVERY SINGLE ONE OF THEM has needed at least two chargers. My 15″ Macbook is on its third.
I have used other brands of phone and computer and none of them had this problem. I find it hard to believe it is just me? Or is it?

