3 7V 18650 2200mAh 8C Lithium Battery​ Product Specification

Model: 18650 Lithium Battery

Rated Capacity: 2200mAh

Energy: 8.14Wh

Minimum Capacity: 2150mAh

Rated voltage: 3.7V

Discharge Cut-off Voltage: 2.75V

Charge Cut-off Voltage: 4.2V

Cycle Life: More than 500 cycles

Dimensions: Φ18*65mm

Weight: 45g

Internal Resistance: Less than 20mΩ

Standard Discharge Current: 0.2C (440mA)

Standard Charge Current: 0.2C (440mA)

Max Continuous Discharge Rate: 8C (17.6A)

Max Continuous Charge Current: 1C (2.2A)

Charging Temperature: 0 to 45℃;

Discharge Temperature: -20 to 65℃

Storage Temperature:

• -20℃~25℃: 12 months
• -20℃~45℃: 3 months
• -20℃~60 ℃: 1 month

Key Features

• ✅ High Power Output
  The 8C discharge rating allows continuous current draw up to 17.6A, supporting devices with significant energy demands.

• 🔋 Reliable Capacity
  2200mah rechargeable battery​ is sufficient for medium-duty applications, balancing runtime and power delivery.

• ♻️ Rechargeable with Long Cycle Life
  Lithium-ion chemistry enables hundreds of reliable charge-discharge cycles.

• 🔒 Thermal Stability and Low Self-Discharge
  Safe operation with reduced risk of overheating and extended shelf life.

• ⚡ Compact and Lightweight
  Ideal for portable electronic designs where space and weight are limited.

Due to the powerful performance and standard 18650 format, the 18650 battery 3.7 v 2200mAh is widely used in:

• 🔦 LED Flashlights & Tactical Torches

• 🛠 Cordless Power Tools

• 🛴 Electric Scooters & E-bikes

• 🚁 RC Cars and Drones

• 🔋 Battery Packs for DIY Projects

• 📡 Wireless Devices and IoT Sensors

Its high discharge capacity makes it especially suitable for motor-driven and pulse-current-demanding applications.

Certifications and Compliance

Cestpower Li Ion Battery 3.7 V 2200mAh meet global safety and compliance standards:

• ✅ UN38.3 – For transportation safety

• ✅ IEC 62133 – Battery safety testing

• ✅ RoHS – Restriction of hazardous substances

• ✅ MSDS – Material safety data sheet for handling

Compliant batteries are essential for customs clearance, OEM production, and consumer confidence.

Cell Matching & Battery Pack Integration

When assembling battery packs for tools, e-bikes, or robotics, cell matching is essential. Always choose:

• Cells from the same manufacturer and batch

• Cells with identical capacity, voltage, and internal resistance

• Use a Battery Management System (BMS) for:

  • Overcharge protection

  • Over-discharge protection

  • Short-circuit prevention

  • Cell balancing

Battery 18650 Battery​ Cell List

Contact us for wholesale quote of 18650 2200mAh