Can I charge my HyperJuice external battery with DC charger? Shirley June 20, 2013 22:08 Updated You need to have an inverter to convert 12v DC to 110v AC in order to charge the HyperJuice battery. Related articles English user manual for HyperJuice AC battery How to recharge the HyperJuice 1.5 / HyperJuice 2 batteries with the Modified Magsafe Adapters? Can the HyperJuice for MacBook battery recharge MacBook's internal battery? Comments 0 comments Please sign in to leave a comment.