There is an on/off button to turn on and off the power of the AC outlets on the HomePower 2 unit. The AC outlets on the HomePower 2 unit will NOT turn on the power automatically. You will need to press the button to turn on the power for the AC outlets.
This design is for safety reasons. If it drains down to 50% and you don't turn it off manually, the power will stay. It only happens if it is completely discharged. If the unit is completely discharged, the AC outlets will be turned off to prevent undesired accidents from happening when the unit is being charged. However, you can turn it on again once the unit is being charged.