Dynamite Reaction 11.1V 4000mAh 3S 20C LiPo Hard Case:Deans Battery This is the Dynamite LiPo Battery 11.1V 4000mAh 3S 20C Case with Dean Connector.Features:Pre-wired with an Deans connector and JST-XH balance connector Value-priced without sacrificing quality or performance Hard case design Designed to fit most 1/8- and 1/10-scale vehicles