18650 2 battery holders with DC5.5*2.1mm power plug
High quality 2x 3.7V 18650 ABS plastic battery box holder.
Multipurpose battery case holder,you can use this case with your own battery to form power system supply.
Easy installation battery holder for 2x 18650, metallic spring with 5.5mm x 2.1mm dc plug design for easy install and convenient for electric circuit diy work.
Package Contents: 1 x Battery Case Holder