2-Pack of Lectron Pro 7.4V 5200mAh 35C Lipo Batteries with Traxxas Connector for 1/10th Scale Cars & Trucks Perfect for 1/10 scale cars, trucks, and buggies Huge capacity for extended run times Includes a Traxxas-type connector on the discharge leads High C rating so you'll have all the power you'll ever need Great choice for the Traxxas Slash and Slash 4X4 models, E-Maxx Brushless Edition, E-Revo Brushless Edition, and Spartan