Optimized for high-power applications like electric vehicle 21700 Li-Ion Battery Cell systems.
Ultra-low internal resistance (≤15mΩ) for efficient energy delivery.
Robust safety performance under extreme conditions.

Specifications

Parameter	Value	Conditions
Nominal Voltage	3.6V	-
Nominal Capacity	4000mAh	0.5C charge (2A), 1C discharge (4A), 2.5V cut-off
Minimum Capacity	3900mAh	-
Internal Resistance	≤15mΩ (AC, 1000Hz)	-
Charge Cut-off Voltage	4.20V	-
Discharge Cut-off Voltage	2.5V	-
Max Charge Current	6A	45°C ≥ T > 15°C
	3A	15°C ≥ T ≥ 0°C
Max Discharge Current	45A	80°C cut-off
Operating Temperature	Charge: 0°C to 45°C	Discharge: -20°C to 60°C
Cell Surface Temperature	Charge: ≤50°C	Discharge: ≤80°C
Dimensions	21.65±0.2mm (D) × 70.95±0.2mm (H)	-
Weight	≤71g	-

Cycle Life

Test Condition	Performance
4A/20A charge/discharge (4.2V–2.5V)	≥70% capacity retention after 500 cycles (80°C cut-off)
4A/30A charge/discharge (4.2V–2.5V)	≥70% capacity retention after 300 cycles (80°C cut-off)

Discharge Curve

Operating Temperature Range

Mode	Temperature Range	Notes
Charging	0°C to 45°C	Optimal: 15°C–45°C
Discharging	-20°C to 60°C	Max surface temp ≤80°C during discharge
Storage	-20°C to 40°C (short-term)	Long-term: 10%–35% SOC at 20°C

Certifications

Key Features

High-Rate Performance: Supports 45A continuous discharge for electric vehicle 21700 Li-Ion Battery Cell systems.
Safety: Protections against overcharge, over-discharge, and overheating.
Durability: Reliable operation in extreme temperatures (-20°C to 80°C).

Applications

Usage Warnings & Precautions

Storage Guidelines

Warranty & Disclaimer

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