At first I was happy about the small, compact and high-quality appearance! Can an LED to argue, but my device tells me so, whether it is loaded! For me, the color is not critical, it should simply invite only my equipment!
After I was already impressed by the external battery "Astro3E 10.000mAh" still lacked an option for car. Due to a very battery hungry Hobbies (Ingress) all technical aids are automatically subjected to a hardness test, whether intentionally or not. Until now both my car chargers and other non-load also able my Galaxy S2 during ingress game, at best to obtain the charge when I turn off the screen in between times. Newer models (Galaxy Note 2, iPad 2, Galaxy Note 10.1) but were quite loaded, which we tested, so I can probably say if my device should be charged, should make other interested parties with more recent smartphones not worry ;-)
Today I was able to conduct the first test in which I deliberately put everything on full-power (Game incl. Light the display etc.). The longed-for success: after 25 minutes 3% more cargo, which makes more than curious :-)
Next, I will test more combinations with other smartphones, while hanging a tablet off.
An update follows so, but until then I can only say thumbs up and express a clear recommendation for Ingress player (and other battery-hungry users) in the car!