Amazon.com: 2Pcs No Wires Connector XT60 XT-60 Parallel Connector 1 Female to 2 Male for RC LiPo NiHM Battery ESC : Toys & Games
Lectron Pro 14.8V 4S 7600mAh 75C Hard Case Lipo Battery with XT60 Connector further CSRC adapter for XT60 batteries - RC Car World (Hobby Shop + Tracks)