5S-Bal-Ext: Balance charge extension for 5S LiPO, 5S LiION, and 5S LiFe batteries (18.5 volt). Length approximately 22cm. Handy for linking the 5S battery (5 cells in series) to a smart charger. Standard JST-JST-XH balance connectors male & female. Essential when using with LiPo Safe charging bags, or when you wish to charge a battery without removing from the model. Length = approx. 8″.