7.4V 2000mah lithium battery
General Specifications:
- Battery Type: Lithium-ion (Li-ion)
- Nominal Voltage: 7.4V (Two cells in series, each 3.7V nominal)
- Capacity: 2000mAh (2Ah)
- Energy: 14.8Wh (7.4V × 2Ah)
- Cell Configuration: 2S1P
Electrical Characteristics:
- Charge Voltage: 8.4V (Fully charged state)
- Cut-off Discharge Voltage: 6.0V (3.0V per cell)
- Continuous Discharge Current: 2000mah
- Max Instantaneous Discharge Current: 2000mah
- Internal Resistance: Typically ≤100mΩ
Charging Parameters:
- Standard Charging Current: 0.5C (1A)
- Fast Charging Current: 1C (2A)
- Charging Time: ~2-4 hours (depending on charge current)
- Charging Method: Constant Current (CC) followed by Constant Voltage (CV)
- Charger Type: Lithium battery charger with a balanced charging circuit
Physical Dimensions:
- Size: Varies by form factor (Cylindrical 18650 or Pouch)
- 18650-based pack: ~38mm × 18mm × 68mm
- Weight: ~100-150g
Safety & Protection:
- Built-in Protection Circuit Module (PCM) (Optional):
- Overcharge protection (~4.2V per cell)
- Over-discharge protection (~3.0V per cell)
- Overcurrent & short-circuit protection
- Temperature protection (if included)
Applications:
- RC toys (cars, drones, boats)
- Portable electronics
- LED lighting
- DIY robotics
- Medical devices
- Backup power for embedded systems