1) I ordered 3. For two out of three, the magnet is simply plugged into the plastic, it moves in its "slot", sticks to Z2, Z2 and is not charging. Solution: remove the magnet, a drop of cyanolite behind the magnet, replace and press (moderately) 2) on the load through this connector, the Sony charger supplied with the Z2, yet 5V 1500 mA is not enough, take a 5V 2A charger, and then it rolls ... 3) connection direction: we must indeed put the cable outlet to the bottom of Z2