Samsung 20S 18650 battery. True 30A battery with 2000mAh capacity.

• Size: 18650
• Nominal Capacity: 2000mAh
• Nominal Voltage: 3.6V
• Maximum Voltage: 4.2V
• Discharge Current: 30A Maximum Continuous
• Style: Flat Top
• Approximate Dimensions: 18.2mm x 64.8mm
• Approximate Weight: 45.7g