Breach of Contract?

I Have recently bought a caravan for the above dealer.The battery was removed for the caravan and replaced with a smaller unit. I have contacted the owner and he response is that I do not need such a large battery as I am only running the lights! Why remove it without my Knowledge?<br> <br> The sales person said that there is a travel blanket with the caravan, Only to find the empty bag in the nose with nothing inside. Is this the kind of service you would like to receive?