[Q] Very strange charging problem any help would be very helpful !! topic

bought an xperia z yesterday all works fine just one problem ive got 4 android chargers in my house they all work fine on the other phones in the house but only 1 usb cable out the 4 work on the z and that one chargers very slow , any reason the other 3 dont work ???? strange as had android phone for years and usually all chargers work all phones :confused: