I can not say anything negative about the charger! I was able to completely problem within an hour the fairly empty sucked battery of my car (had previously take start help, because the battery was too weak to start) charge. When even a small technical understanding has (z. B. is capable of a battery to be bridged by jumper cables ...), the device is practically self-explanatory. My battery has been correctly identified immediately after connecting the charger, as shown pretty empty (only one of five charging bars) and the charging process is started immediately. I can not even confirm the frequent criticism of the manual. What you should already great also write more about that? All relevant (as close to Mans, explanation of display ads) is whistled. I am therefore in any case come along well. As only possible gripe might mention that the two charging terminals are perhaps a bit small, at least compared to high-quality jumper cables. Since I have come but that nevertheless cope with my Alfa 147 (and because the battery is thanks to Italian design perfectly - I'd like to say - "interesting" installed, know Alfa driver, what I mean ...), me is not enough for a deduction of points. Therefore, full 5 stars! Würds any time buy back, at that at the price!