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 How to recharge the HyperJuice 1.5 / HyperJuice 2 batteries with the Modified Magsafe Adapters? How long should I charge my new HyperJuice battery? English user manual for HyperJuice AC battery Can I charge the HyperJuice external battery world wide? How to use the Pre-Modified Magsafe Adapter Comments 0 comments Please sign in to leave a comment.