Dodge Journey

I bought this car and it is a 2012 model. I have only owned it for 4 years and barely last year was when I haven't probably needed a new battery I'm not quite sure there's honestly nothing wrong with it I had it in the Dodge shop and they fixed it but now I don't want to deal with it anymore I'm looking to purchase something smaller and I just want to sell this one for possibly $3500.00 I know for a fact you can look at it on your own until there is possibly nothing wrong I just don't want to look into it I paid $8700.00 for this car but I don't want to have two cars because I will be getting something very soon come take a look at it I can't get it to start.