LG Inr 18650 Mj1 3400mAh 3.6V 1.5c Discharge Rate Rechargeable Battery Lithium Cell

• Customization: Available
• Type: Li-ion Battery
• Cathode Material: NCM
• Model NO.: INR18650MJ1
• Rechargeable: Yes
• Size: 18650
• Nominal Voltage: 3.635V
• Max. Charge Current: 1c (3,400mA)
• Charge Voltage: 4.2V
• Discharge Cut off Voltage: 2.5V
• Max. Discharge Current: 1.5c
• Safety Over Voltage: Max 4.25V
• Safety Under Voltage: Min 2.00V
• End of Charge Voltage: 4.20V
• Max. Continuous Discharge: 10A
• Cell Weight: 49.0g Max
• Storage Temperature for Shipping Cell: < 35ºC
• Operating Temperature (Surface): Charge:0 to 55ºC, Discharge:-20 to 70ºC
• Cycle Life: 600 Cycles
• Transport Package: Plastic Lining, Carton Packaging
• Specification: 18x65mm
• Trademark: LG
• Origin: China
• HS Code: 8507600090
• Production Capacity: 1, 000, 000 Units/Month
• Package Size: 30.00cm * 30.00cm * 9.00cm
• Package Gross Weight: 5.000kg

Product Description

LG INR18650 MJ1 - Complete Technical Datasheet

1. General Specifications

 

 

Parameter	Value	Test Conditions
Model Number	INR18650 MJ1	Manufacturer: LG Energy Solution Ltd.
Chemistry	Lithium-Ion (Li-ion)	Cathode: NCM / Anode: Graphite
Nominal Voltage	3.6V	Average voltage during 0.2C discharge
Rated Capacity	3500mAh (3.5Ah)	Discharged at 0.2C (700mA) to 2.5V, 25°C ±2°C
Minimum Capacity	3400mAh	Per manufacturer tolerance
Energy	12.6Wh	Calculated (3.6V × 3.5Ah)
Internal Resistance (AC)	≤20mΩ	Measured at 100% SOC, 1kHz AC impedance, 25°C
Weight	49.0g ±1.0g	Without terminals
Dimensions	18.3mm (D) × 65.2mm (H)	Tolerance: ±0.2mm

 

2. Electrical Performance

 

 

Parameter	Value	Test Conditions
Standard Charge	CC-CV, 4.2V, 1.75A (0.5C)	Cut-off: 0.05C (175mA) / Time: ~3 hours
Fast Charge	CC-CV, 4.2V, 3.5A (1C)	Cut-off: 0.05C
Max Charge Current	4.2A (1.2C)	Limited by temperature rise (T ≤45°C)
Charge Temperature	0°C to 45°C	Optimal: 25°C
Continuous Discharge	10A (2.86C)	Max current without exceeding 80°C cell temperature
Peak Discharge (Pulse)	20A (5.71C) for ≤3s	25°C, 50% SOC
Discharge Cut-off	2.5V	Lower limit to prevent damage
Operating Temperature	Discharge: -20°C to 60°C	Charge: 0°C to 45°C

 

3. Cycle Life & Durability

 

 

Parameter	Value	Test Conditions
Cycle Life	≥500 cycles	0.5C charge/1C discharge, 100% DOD, 25°C (to 80% initial capacity)
Storage Life	12 months (25°C)	Capacity recovery ≥90% after storage at 50% SOC
Self-Discharge Rate	≤3% per month	At 25°C, 50% SOC

 

4. Thermal & Safety

 

 

Parameter	Value	Test Conditions
Thermal Runaway	>150°C	Catastrophic failure temperature (per UN38.3)
Certifications	UN38.3, UL1642, IEC62133, RoHS	Complies with international transport/safety standards
Protection Devices	CID + PTC	Current interrupt device (CID) and thermal fuse (PTC) integrated

 

5. Discharge Curves & Efficiency

• Voltage vs. Capacity (25°C):

  • 0.2C (700mA): ~3.6V average, 3500mAh delivered.

  • 1C (3.5A): ~3.5V average, 3450mAh delivered.

  • 3C (10.5A): ~3.3V average, 3350mAh delivered.

• Energy Efficiency: ~94% at 0.5C discharge (25°C).

 

6. Comparison with Competing Cells

 

 

Model	Chemistry	Capacity	Max Continuous	Energy Density	Cycle Life
LG MJ1	NCM	3500mAh	10A	257Wh/kg	500 cycles
Samsung 35E	NCM	3500mAh	8A	260Wh/kg	600 cycles
Molicel M35A	NCM	3500mAh	10A	267Wh/kg	500 cycles

 

7. Application Notes

• Recommended Uses: Flashlights, portable electronics, low-to-medium drain devices.

• Thermal Management: Passive cooling sufficient for ≤8A continuous discharge.

• Storage: Keep at 50% SOC, 15-25°C for longevity.

 

Key Takeaways

1. High Capacity: 3500mAh with stable 10A discharge (2.86C).

2. Optimized Chemistry: NCM cathode for energy density and longevity.

3. Safety Features: Integrated CID and PTC protection.