Is this the original battery? That's what I meant sorry. I'd guess it's a bad battery if so. Battery longevity varies a bit region to region. I would start there before doing anything else more invasive.
I honestly dont know if its the original one... I purchased the car like this last year. The battery is a blue colored one from Bosch. I could look at the number or something thats written on it tomorrow, if you want me to.