This Gens ace 5500mAh 4S Lipo Battery Pack comes pre-equipped with the industry standard EC5 connector, no soldering required. With a maximum discharge rate of 120C, this 3S 5500mAh lipo pack is ready to give you all the power you need, whatever your application. Gens Ace batteries deliver full capacity & discharge as well as being the best value batteries in the hobby market today. Trust Gens Ace for long LiFe and consistent durability run after run. This size is great fit in Arrma RC cars. FeaturesStable automatic stacking technology enables single-cell capacities of 5500mAh. . Best raw material and excellent workmanship to fulfill customer needs. High reliability and automatic production line to guarantee high quality and consistent performance. . Small in size and light in weight. . SpecificationsMinimum Capacity: 5500mAh. Configuration: 3S1P / 11.1 V / 3 cells. Discharge Rate: 60C. Max Burst Discharge Rate: 120C. Net Weight(±20g): 406g. Dimensions: 138mm Length x 42mm Width x 32mm Height. Balancer Connector Type:JST-XHR.