Gens ace offers a wide range of LiPo batteries for the Arrma 1/10 Big Rock series, including both the 223S version and older models. Choose from 2S or 3S options with connectors and durable hardcase designs. These batteries deliver excellent discharge performance, long lifespan, and stable power with heat-resistant thick gauge wire. Extend your runtime on the track or trail. Pair them with Gens ace G-tech smart chargers for simple plug-and-play charging and easy storage.