Description 4 Cell / 4S 3.7V Battery Balancer Module for Lithium ION or Lithium Polymer (LiPO) Batteries. Technical Specifications Features: 4.2V Balance function Operating Current: 68mA Dimensions: 26.1mm x 20.5 Weight: 1.70g Pinouts B4 : connect with a positive battery B3 : connect with junction between battery 1 and battery 2 B2 : connect with junction between battery 2 and battery 3 B1 : connect with junction between battery 3 and battery 4 B-: Connect with negative battery Package Includes 1x 4S 14.8V Battery Balancer Module
