5000mAh 21700-50E high-capacity power lithium battery

**5000mAh ultra-large capacity, 3.6V voltage, 12.0mΩ internal resistance**, 5A charging/15A discharging, ≤72.0g, NCM/NCA ternary chemistry, Changhong Sanjie 21700 high-capacity cells—designed for long‑range applications, ensuring safety and stability.

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:

Product Inquiry
5000mAh 21700-50E high-capacity power lithium battery
5000mAh 21700-50E high-capacity power lithium battery
5000mAh 21700-50E high-capacity power lithium battery
5000mAh 21700-50E high-capacity power lithium battery

The 21700-50E is a high-capacity cell in the 21700 format, based on an NCM/NCA ternary chemistry. Its key advantages include an ultra‑large 5,000 mAh capacity, a stable 3.6 V nominal voltage, and an internal resistance of just 12.0 mΩ. It supports 5 A charging and 15 A discharging, making it ideal for applications requiring extended endurance, such as portable energy storage systems and electric bicycles. The cell employs a high‑energy‑density NCM ternary cathode material, with an optimized electrode architecture and electrolyte formulation to maximize capacity utilization. Production is carried out on a fully automated line, with stringent quality control at every stage; each cell undergoes 100% full inspection and passes rigorous cycling and safety tests to ensure reliability. Its core competitive edge lies in its industry‑leading capacity within this form factor, coupled with exceptional cycle life—retaining over 80% of its initial capacity after 500 cycles—and a lightweight design of ≤72.0 g, perfectly suited for 21700‑compatible devices. The cell also delivers excellent low‑temperature performance. Applications span energy storage, electric bicycles, and large portable equipment, with support for OEM/ODM customization and comprehensive technical assistance.