LaughlinLS

Ok I need some help. I purchased the LiTime 48v (51,2V) GC230Ah batteries mentioned above and charged them up. I reprogrammed the onboard charger to the 233 profile and have reconnected the batteries in parallel. However I am getting no power at all. Which batteries did you connect the additional ground wire and power wire that were connected to the original dry cells? The positive cable to the UTV is connected to a positive post on the last or first battery in the sequence. The black negative I was asking is connected to the opposite end of the battery series. So again I have all the cables connected neg to neg and pos to pos. Not sure what I have done wrong here. Thanks for any insights