Hello, i recently had to change my car battery and when i came to start it last night the brakes were still engaged even though the handbrake was off, there was also a really bad smell of something burning and loud noises coming from the back wheels. the car has been parked up for the last month in the cold weather and i'm not sure if this is anything to do with the problem. i dont know much about cars so any suggestions on what the problem could be would be very helpful. thanks