Specifications:

• Charging voltage: 4.2V
• Overcharge protection voltage: 4.3V
• Nominal voltage: 3.7V
• Minimal capacity (0.5C): 300mAh at 0.5C discharge
• Nominal capacity: 300mAh at 0.5C discharge
• Charge current:
  • Standard charge at 0.5C
  • Rapid charge at 1.0C
• Standard charging method: 0.5C, CC (constant current) charge to 4.2V, then CV (constant voltage 4.2V) charge till charge current decline to ≤0.05C
• Charging time: standard charge needs 3.0 hours (ref) and rapid charge needs 2 hours (ref)
• Maximum charge current: 1C
• Maximum discharge current: 2C
• Discharge cut-off voltage: 3.0V
• Operating temperature: charging at 0 to 45°C
• Discharging: -10 to 45°C
• Storage temperature: -10 to + 45°C
• Cell weight: 5.8g (approximately)
• Cell dimensions: length 31mm maximum (not including tabs)
• Width: 18mm (maximum)
• Thickness: 6.0mm (maximum)

other size can be available,we can design the product according to the customer's exact requirements.