ENERGY STORAGE DEVICE

Systems and methods for an energy storage device having a port, a motion sensor, an ambient light sensor, a status indicator having one or more segments, and one or more processors coupled to memory. The energy storage device can determine a state of the energy storage device, detect a movement, and detect an ambient light level. The energy storage device can illuminate a status indicator. The processors determine the brightness for the number of the one or more segments based on the ambient light level, and determine the number of the segments to illuminate based on the state of the energy storage device.