Battery Case Holder for 3 x 3.7V 18650 Batteries - TOOGOO(R) 5 Pcs Black Plastic 3 x 3.7V 18650 Batteries 6 Pin Battery Holder Case This battery box holder with pin connector, fit for 3 x 3.7V 18650 batteries. With weld leg design, you can easily to put the battery in it. Battery is not included here.