if more than one iPad at home has for the family, then you need chargers that are reasonably quickly able to recharge. In 1A charging current, it takes a long time - 2.1A are "standard" - and is well connected to this unit is that it has strong from a wall outlet 2 ports. Many other devices have only one port, which is suitable for an iPad and then a 1A where you still can charge a phone or any other time 12 hours waiting for the charge. Therefore .. If you have :-)