Re: onboard chargers
You didn't get a good look at it so you don't know about the indicators, and you "think" your ac plug/extension cord is good. Those aren't very positive responses. Plug something else into the extension cord to make sure you have power. If it's ok then plug in the charger. No lights could be as simple as a broken wire in the ac power cord which usually happens at the plug because people tend to pull on the cord rather than the plug.