ShenZhen ManLi Technology Co., LTD.
                                                                                                           
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Rechargeable 21700 High Drain Lithium Battery 3.6V 5000mAh Max 45A Discharge

Price Negotiable
Price: Negotiable
MOQ: 1000pcs
Delivery Time: Negotiable
Brand: SDI
Product Description

21700 High Drain Lithium Battery 3.6V 5000mAh  Max 45A Discharge

 

 

Features

 

  1. High-Rate Discharge Capability: Designed to deliver high continuous discharge currents up to 45A .
  2. High Energy Density: Offers a balance of good capacity (5000mAh) and high power output in the standard 21700 form factor, providing long runtime. 
  3. Long Cycle Life: Can withstand over 500 charge-discharge cycles while maintaining more than 80% of its initial capacity, ensuring value and longevity. 

  4. Stable Performance: Features a stable nominal voltage of 3.6V, providing consistent power delivery throughout the discharge cycle. 

  5. Low Self-Discharge: Maintains its charge for extended periods when not in use, making it reliable for occasional use.

  6. No Memory Effect: Can be recharged at any state of charge without suffering from capacity reduction, offering flexible charging schedules.

 

 specification :

 

Nominal Capacity
5000mAh  (0.2C discharge) 
Minimum Capacity
4800mAh  (2C discharge) 
Nominal Voltage
3.6V
Internal Impedance
≤ 15mΩ
Weight
72g 
End of Charge Voltage
4.20± 0.05V
End of Discharge Voltage
2.5V
Charging Time
150 min
Maximum Charging Current
6A
Maximum Discharging Current
25A   
Without Temperature Cut
45A
With 80℃ Temperature Cut
Operating Temperature
Charge: 0~45°C
Discharge: -20~60°C
Cycle Life
≥500 cycles 
Storage Temperature For
Shipping Cell
< 35°C

 

 

 

 

application 

 

  • High-Performance Power Tools: Drills, saws, and other cordless tools that demand high current and power.
  • Electric Transportation: E-bikes, e-scooters, electric motorcycles, and golf carts. 

  • Portable Power Stations: DIY power banks and portable energy storage capable of high output. 

  • High-Luminosity Flashlights: Tactical and search lights requiring robust current flow.

  • Professional Video & Photography Equipment: High-wattage LED lights and camera accessories.

  • Solar Energy Storage Systems,UPS,Industrial Equipment

Warnings & Precautions

 

Charging
 
  • Use a Dedicated Li-ion Charger: Always use a charger specifically designed for lithium-ion batteries
 
  • Charge Within Specifications: Do not charge above the maximum voltage of 4.2V or exceed the maximum charge current
 
  • Temperature Monitoring: Charge only between 0°C to 45°C. Never charge a battery that is below freezing (0°C) or feels hot to the touch.
 
 
Discharging
 
  • Avoid Over-Discharge: Stop using the battery before reaching the cut-off voltage of 2.5V. Over-discharging can cause irreversible internal damage.
 
  • Respect Current Limits: While rated for 45A continuous, sustained operation at maximum load can generate heat and reduce lifespan.
 
  • Temperature Management: Avoid discharging outside the recommended temperature range (-20°C to 60°C).
 
 
Storage
 
  • Partial Charge Storage: For long-term storage (longer than one month), store the battery at a 30%-50% State of Charge (SOC).
 
  • Cool and Dry Environment: Store in a cool, dry place away from direct sunlight and moisture. Ideal storage temperature is between -20°C to 25°C.
 

 

 

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company ShenZhen ManLi Technology Co., LTD.
Location No. 202, Building H, 30 Qi Xin Road, Wuliang Community, Longgang Street, Longgang District, Shenzhen City, Guangdong Province, China
Contact Person Sherry Zhang

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