Nice product, the only small negative thing is that one of the two usb ports is upside down, and this creates confusion. The standard would be that the UB plug goes with the two square holes pointing up. I removed right away the cap because I needed it in my car, not on a boat.
I've had this charger for a while, and the only defect I can think of is the fact that one of the two USB ports is upside down, creating more confusion when inserting a cable (like if normally there was not already enough confusion in inserting USB cables).
not the same like picture (no screen)