Description

3 7V 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

Nominal  Voltage	Nominal     Capacity	Diameter            (±0.5mm)	Length (±0.5mm)	Weight       (±5%)	Max Charge Current	Max Discharge  Current	Max Internal Resistance
3.7V	1200mAh	18mm	65mm	36g	1.2A	1.2A	60mΩ
3.7V	1200mAh	18mm	65mm	36g	1.2A	12A	25mΩ
3.7V	1500mAh	18mm	65mm	39g	1.5A	4.5A	60mΩ
3.7V	1500mAh	18mm	65mm	39g	1.5A	22.5A	17mΩ
3.7V	1600mAh	18mm	65mm	39g	1.6A	4.8A	55mΩ
3.7V	1800mAh	18mm	65mm	39g	1.8A	1.8A	55mΩ
3.7V	2000mAh	18mm	65mm	43g	2A	6A	45mΩ
3.7V	2000mAh	18mm	65mm	44g	2A	16A	18mΩ
3.7V	2000mAh	18mm	65mm	44g	4A	20A	18mΩ
3.7V	2000mAh	18mm	65mm	44g	6A	30A	15mΩ
3.7V	2200mAh	18mm	65mm	45g	2.2A	6.6A	45mΩ
3.7V	2200mAh	18mm	65mm	45g	2.2A	11A	20mΩ
3.7V	2200mAh	18mm	65mm	45g	2.2A	17.6A	20mΩ
3.7V	2200mAh	18mm	65mm	45g	4.4A	30A	18mΩ
3.7V	2400mAh	18mm	65mm	48g	2.4A	7.2A	40mΩ
3.7V	2500mAh	18mm	65mm	48g	2.5A	7.5A	40mΩ
3.7V	2500mAh	18mm	65mm	45g	5A	20A	18mΩ
3.7V	2500mAh	18mm	65mm	45g	5A	30A	15mΩ
3.7V	2600mAh	18mm	65mm	50g	2.6A	7.8A	40mΩ
3.7V	2600mAh	18mm	65mm	45g	5.2A	13A	18mΩ
3.6V	3000mAh	18mm	65mm	48g	3A	9A	40mΩ
3.6V	3000mAh	18mm	65mm	46g	6A	15A	18mΩ
3.6V	3200mAh	18mm	65mm	48g	3.2A	9.6A	40mΩ
3.6V	3500mAh	18mm	65mm	46g	7A	10A	18mΩ

Contact us for wholesale quote of 18650 2200mAh