The dynamite 2s high current charge/balance adapter is used to charge/discharge your 4mm or 5mm bullet batteries at higher than normal amp rates or need a heavy duty low resistance charge cable. The huge 10 guage wire is 23. 6" (600mm) long, gold plated 4mm and 5mm bullets for the battery connection and 4mm bullet connectors for the charger connection, with a jst-xh balance plug. The coiled jacket helps to keep the adapter flexible, tangle free and help keep your work space clean and organized.