Bests & Worsts Reviews from Amazon

Used it one time yesterday morning to charge my phone on my commute to work. It worked great and charged it very quickly to full from less than half battery life. After work I plug my phone back in but I don't see the charging icon on my phone. I check the charger and there's no light. Unplugged and replugged it back in several times and tried another port but no dice. I still had the old charger and I tried that and it works in both ports. Doesn't look like there's a fuse so no use in trying to open it. Pretty certain it's dead.