you know the dummy light the throttle has on an electric bicycle? well I rode mine to work and when I got their only yellow and red lights were still lit. when that happens I got maybe a mile left on it and I should have had around 8 left. anyway I put it on the charger and when I got off work I turned on the key and only the 2 lights lit. I was thinking crap I have to climb the mountain and I am not going to make it home before darkness if I have to pedal all the way thier, so I pedaled all I could (which I seldom pedal at all) worried all the way home and trying to save the battery to climb over the mountain. i got home soaked with sweat. anyway I put it on the charger same thing only 2 lights, checked with the a volt meter and I had a full charge 58 volts, long story short this dummy believed the dummy lights and my legs are killing me lol. glad it was only a light bulb