Had my this charger 2x send. The first time the alligator clip of the negative pole was assembled incorrectly, so that one has achieved no spring effect and the manual was also dirty (maybe it had already get someone else?). In the second and the Speditör was probably to blame because a corner was bent over and ripped the paint demändsprechend. The cable to the unit was very casual and anything but flexible. I give the 2 stars, because the device does the job. Both have worked.