Electric Bicycle

Daniel often uses an electric bicycle to go to work these days. It is an ordinary bicycle, but with an electric motor that supplements the power of his legs, when he turns the pedals. The bad thing is that it needs to get charged now and then. This is not the case with ordinary bicycles. I guess Daniel still think it is worth it. He has still got his ordinary bicycle, bit rarely uses this anymore. Electricity is a good thing, I believe.