The Loki contains circuits that are always powered. The faint glow from the LEDs are a result of this, but has only a minor impact on battery discharge rate. Loki, if not being used, will discharge in approximately 3 weeks and will shut down until reconnected to USB power. We recommend fully charging Loki no more than one day in advance of flight. More information about battery life can be found here: https://support.geocue.com/loki-battery-life-information/?highlight=loki%20battery%20life
