im not sure if this is the right place for this post as i really have no clue what im talking about, i have bought my son a second had nitro off road car, made by smartech, it has just arrived and it doesnt start, we think it may need charging so we have now plugged that in, does any one know how long it takes to charge and if this doesnt work can anyone think of what else could be the problem, it is in very good condition and we were told it has only been used a couple of times. When repling to this can you make it as un technical as possible, many thanks