Operation: 4 LEDs indicating the level of charge / discharge will be read without too much difficulty. Not even need to read the manual to understand the operation: the current level is that of the LED flashing. It will be appreciated auto-power on / off. a button on the side give the possibility to turn on and check the battery and the current level.
Aesthetics: Very compact, the finish is very good with a glossy black and rounded shapes.
In short, lAnker® Astro E1 5200mAh and a worthy successor to the Astro SLIM2, it will find its use with nomadic refresh technoligic welcome