Can the hyperjuice charge two devices while it is plugged into the wall? Shirley September 08, 2015 23:06 Updated Follow HyperJuice Plug can charge 2 devices anytime, but bear in mind that the input/charging power from the wall outlet to the HyperJuice Plug is 5W while the output/discharging power from the HyperJuice Plug to the UsB devices can go up to 15W. Tags: HyperJuice Plug, plug into wall outlet Related articles My Apple device start fast charging and slows down (Macbook charging from 100W to 60W) How long does it take to charge the HyperJuice Plug? Can the HyperJuice Plug recharge the new iPad (3rd generation)? How long does it take to charge the HyperJuice Plug? What is the difference between HyperJuice 1.5 and HyperJuice 2? Comments 0 comments Please sign in to leave a comment.