How do I know if the battery in my HyperJuice Micro and Mini is low? Shirley August 02, 2013 22:42 Updated When the battery is low, you will see a RED LED which indicates that the battery needs to be recharged. The battery power indicator is below: Tags: low battery, hyperjuice micro, hyperjuice mini, Related articles How do I know if the HyperJuice Micro/Mini is fully charged? When should it be recharged? Can I use the HyperJuice Micro or Mini to charge my MacBook laptop? How to store your Hyperjuice when not in use. English user manual for HyperJuice AC battery Mac OS version of Firmware Update (HD319A) for HyperDrive iPad Pro Comments 0 comments Please sign in to leave a comment.