How do I know if the battery in my HyperJuice Micro and Mini is low? Shirley August 02, 2013 22:42 Updated Follow 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? English user manual for HyperJuice AC battery Comments 0 comments Please sign in to leave a comment.