No matter where you buy from they will come with balance connectors. I believe Thunderpower is the only one that will give you the option for deans connectors attached . Most places like Hobby King will sell the batteries with XT-60 connectors attached. You can either remove them (that's what I used to do when I used to buy batteries from them) and attach the deans yourself,or you might find someplace selling XT-60 to deans adapters. Hobby King and China Hobbies are 2 popular places on the RC forums for batteries. I am not sure if RSM or Brodak still have batteries. I used Thunderpower for about the last 5 or 6 years. I am sure others will add to this . It would also help if you tell us what size batteries that you want.