5000mAh 21700-50SE high-capacity, high-rate lithium battery

**5000mAh ultra-large capacity, 3.6V voltage, 12.0mΩ internal resistance**, 10A charging / 35A high‑rate discharging, ≤72.0g, NCM/NCA ternary chemistry, Changhong Sanjie’s premium battery cells, optimized for high‑end, long‑range, high‑power applications.

Product Features

High charge–discharge rates: Designed for the most demanding professional power‑tool and other application scenarios, it can deliver ultra‑high discharge rates of up to 10–15C and support charging rates exceeding 2C.

Ultra-wide temperature performance: The battery can discharge at an ultra-low temperature of −40°C and operate at a high temperature of up to 80°C, while also delivering high‑rate discharge capability at low temperatures.

High Consistency: Produced on an intelligent manufacturing line, with end-to-end digitalization and high-precision control across all process steps, ensuring superior consistency and enhanced safety.

High Security: A fully integrated information system (CRM, PLM, SRM, MES, ERP) ensures high security.

产品分类：

Cylindrical lithium battery

21700

Keywords:

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5000mAh 21700-50SE high-capacity, high-rate lithium battery
5000mAh 21700-50SE high-capacity, high-rate lithium battery
5000mAh 21700-50SE high-capacity, high-rate lithium battery
5000mAh 21700-50SE high-capacity, high-rate lithium battery

The 21700-50SE is a high‑end, high‑capacity, high‑rate cell in the 21700 format, featuring an NCM/NCA ternary chemistry. Its key advantages include an ultra‑large 5,000 mAh capacity and a high discharge rate of 35 A, along with a stable 3.6 V nominal voltage, an internal resistance of 12.0 mΩ, and 10 A fast charging. It is ideally suited for high‑end portable energy storage systems, high‑power power tools, and other demanding applications. The cell employs a high‑nickel, high‑energy‑density NCM ternary cathode material paired with a high‑conductivity electrolyte, delivering both extended endurance and robust performance. Production utilizes advanced precision manufacturing processes and end‑to‑end digital quality control, incorporating multiple built‑in safety safeguards and undergoing 100% full inspection and rigorous testing. Its core competitive edge lies in balancing large capacity with high discharge rates; 10 A fast charging enhances operational efficiency, while maintaining over 80% of its initial capacity after 500 cycles. Weighing no more than 72.0 g, it fits seamlessly into 21700‑compatible high‑end devices. Applications span premium energy storage, power tools, drones, and more, with support for customized solutions to help overseas high‑end customers strengthen their product competitiveness.