Technical specifications for Far East Battery's 3.6V 5.0Ah lithium-ion cell, including dimensions, capacity, temperature performance, and safety criteria.
This document details the technical specifications for Far East Battery’s 21700-5000mAh lithium-ion rechargeable cell. It covers nominal capacity, voltage, internal resistance, charge/discharge currents, temperature ranges, and performance metrics such as cycle life and storage characteristics. The cell is designed for applications requiring high energy density and reliable performance across a wide temperature range.
The document also outlines testing conditions, measurement equipment requirements, and safety guidelines for charger and battery pack design. It includes performance data for different discharge rates, temperature-dependent efficiency, and long-term storage behavior under both standard and elevated temperatures. This manual is written in Chinese.
| Nominal Capacity | 5000mAh |
|---|---|
| Nominal Voltage | 3.60V |
| Internal Resistance | ≤ 25mΩ |
| Charge Cut-off Voltage | 4.20V |
| Discharge Cut-off Voltage | 2.50V |
| Energy Density | 253Wh/kg |
| Cell Dimensions | Height: 70.95±0.2mm, Diameter: 21.65±0.2mm |
| Weight | 71±2g |
| Working Temperature (Charge) | 0~45°C |
The nominal voltage is 3.60V.
The energy density is 253Wh/kg.
The discharge capacity after 500 cycles is ≥80% of the first cycle capacity.