5000mAh 21700-50Y ultra-high-rate lithium battery

The 21700-50Y is a top‑tier, ultra‑high‑rate, high‑capacity cell based on an NCM/NCA ternary chemistry. Its key advantages include a large 5,000 mAh capacity and an exceptionally high discharge rate of 70 A, along with a stable 3.6 V nominal voltage, an ultra‑low internal resistance of 3.5 mΩ, and 12 A fast charging. It is ideally suited for high‑end, extreme‑power applications such as racing drones and other demanding scenarios. The cell employs premium, high‑nickel, high‑energy‑density NCM ternary cathode material paired with a high‑conductivity electrolyte, delivering breakthrough performance in both capacity and rate capability. Production utilizes industry‑leading manufacturing processes, with end‑to‑end digital precision control, built‑in multi‑layer safety protections, and 100% full inspection followed by rigorous extreme‑condition testing. Its core competitive edge lies in the seamless integration of large capacity and ultra‑high rate: the ultra‑low 3.5 mΩ internal resistance ensures stable delivery of 70 A, while maintaining over 80% of its initial capacity after 500 cycles. Weighing just 67.5 g, it offers lightweight design ideal for high‑end devices. Applications span high‑end, extreme‑power equipment and racing‑grade systems, with support for customized solutions and world‑class technical assistance.