The hardcase of this 7.4V 2s lipo battery 5300mah provides your batteries very solid protection, it comes with an equipped EC3 plug. Fit more RC cars.

Gens Ace 3000mAh 7.4V 2S1P TX Lipo Battery Pack With JST Plug - GEA30002STXJ

The ProTek R/C 4S 130C Low IR Graphene + HV LCG 4300mAh LiPo Battery is the perfect option for any racer requiring a lightweight, 4S battery. Weighing only 338 grams, this LCG 4S is over 200 grams lighter than a standard 4S pack.

GensAce batteries have been proven within the Radio Control community to deliver reliable and consistent performance for all modelers alike.

Pilots and drivers enjoy more Smart benefits with Spektrum™ Smart G2 30C LiPos. Not only are charging parameters and performance data stored and uploaded automatically to Smart chargers, but no balance lead is needed — just one easy IC® connection!

22.2V 5000mAh 6S 100C Smart G2 LiPo Battery: IC5 Item No. Spektrum - SPMX56S100

Complete with a high-efficiency charger, two Power Cell LiPo batteries, and Traxxas' iD auto battery identification, the Traxxas Battery & Charger Completer Pack is everything you need to power your projects.

The ProTek R/C 3S 90C 1400mAh Si-Graphene + HV LiPo Battery was developed for scalers, drones, airplanes - or any application where space is at a premium and light weight is critical.