High-Capacity 3.6V 4.2Ah 21700 Lithium Battery Cell

Features:

• High capacity for extended run times: 4.2Ah (4200mAh)
• Robust maximum continuous discharge current: 45A
• Stable and reliable with low internal resistance
• Quality cylindrical 21700 form factor for better energy density
• Wide temperature operating range
• Compliant with UN38.3, UL1642, IEC62133, and RoHS standards

Specifications:

• Model: INR-21700-P42A
• Chemistry: Lithium-ion (Li-ion)
• Nominal Voltage: 3.6V
• Typical Capacity: 4200mAh
• Minimum Capacity: 4000mAh
• Standard Charge Current: 4.2A
• Maximum Charge Current: 8.4A
• Discging Cut-Off Voltage: 4.20V ± 0.05V
• Discharge Cut-Off Voltage: 2.5V
• Max Continuous Discharge: 45A
• Dimensions: 21.40 ± 0.15 mm (Diameter) × 70.00 ± 0.15 mm (Height)
• Weight: ≤70g
• Internal Resistance: ≤15mΩ (@1kHz)
• Operating Temperature: Charge: 0–60°C; Discharge: -40–60°C
• Storage Temp: <35°C (optimal <23°C for long-term)
• Life Cycle: ≥500 cycles (at 4.2A or 10A; capacity ≥80% after 500 cycles)
• Compliance: UN38.3, UL1642, IEC62133, RoHS

Applications:

• Power tools
• E-bikes and electric scooters
• Battery packs
• Electric vehicles and robotics
• Industrial and high-drain equipment