The charger is externally normal. Made qualitatively. The idle voltage at the output of 5.2 v. under the load the device did not check yet. The backlight is very weak. Calls into question pressing contact in the form of a ball. Very easily inserted into the socket and slides on it. I think it can independently move away from vibration and shaking. Well, let's see there. In the meantime, the seller is 5 stars.