Summary of 26650 5000mAh 5C 3.7V Li Ion Battery​

The 26650 5000mAh 5C 3.7V Lithium Ion Rechargeable Battery is engineered for demanding applications that require high energy density, long runtime, and stable high-current output. With an energy density up to 194.74Wh/kg, a true 5000mAh capacity, and 5C continuous discharge capability, this cell delivers exceptional performance, efficiency, and cycle life for professional-grade energy solutions. Designed with low internal resistance and advanced thermal control, it ensures lower heat generation, higher efficiency, and a long service life exceeding 500 deep cycles, making it an ideal choice for industrial, mobility, and energy storage applications.

26650 Rechargeable Battery 5000mAh​ Specification

Model: Lithium Ion 26650

Rated capacity: 5000mAh

Energy: 18.5Wh

Energy Density: 194.74Wh/kg

Minimum Capacity: 4950mAh

Rated voltage: 3.7V

Discharge Cut-off Voltage: 2.75V

Charge Cut-off Voltage: 4.2V

Cycle Life: More than 500 cycles

Dimensions: Φ26*65mm

Weight: 95g

Internal Resistance: Less than 20mΩ

Standard Discharge Current: 0.2C (1000mA)

Standard Charge Current: 0.2C (1000mA)

Max Continuous Discharge Rate: 5C (25A)

Max Continuous Charge Current: 1C (5A)

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 – 3.7 V 26650 Lithium Ion Battery​

🚀 Ultra-High Energy Density — Up to 194.74Wh/kg

• Maximizes power output while minimizing weight

• Ideal for compact designs where energy-to-weight ratio is critical

• Supports lightweight and portable power solutions

🔋 True 5000mAh High Capacity for Extended Runtime

• Delivers longer operating time per charge

• Reduces charging frequency and system downtime

• Consistent capacity output across discharge cycles

🔥 Low Internal Resistance for Higher Efficiency

• Minimizes energy loss during charge and discharge

• Generates less heat under high load

• Improves system safety and performance stability

⚙️ 5C Continuous Discharge for High-Current Demands

• Supports sustained high-power output

• Suitable for devices requiring instant current delivery

• Maintains voltage stability under heavy loads

🔁 Long Cycle Life — 500+ Deep Cycles

• Over 500 full charge-discharge cycles

• Remaining capacity ≥4000mAh after 500 cycles

• Lower total cost of ownership and longer product lifespan

❓ Frequently Asked Questions (FAQ)

Q1: What are the disadvantages of 26650 batteries?

Q4: Is it better to store lithium batteries empty or full?

A: It’s best to store lithium batteries neither empty nor full, but at about 40–60% charge. Storing them fully charged or completely depleted accelerates aging and can permanently reduce capacity.

Q5: What are 26650 batteries used for​?

Cylindrical Rechargeable Lithium Ion Battery​ Cell List