INR21700-4000 cells

Parameter information

 

Nominal capacity: 4000mAh

Maximum charge voltage: 4.20V

Discharge termination voltage: 2.5V

Maximum charge current: ≤2C

Maximum continuous discharge current: 5C

Discharge temperature: -20℃~75℃

Internal resistance: ≤15mΩ


Product Features

ItemSpecification
Rate performanceThe maximum discharge current can reach 20A contiguous discharge
Safety and reliabilityCertificate by RoSH, BIS, CB, UN38.3, UL, CE, MSDS and battery directive
Strong adaptabilitySuitable for working in different environments, discharge capacity ratio ≥80% at -10℃
Long cycle life4A/15A cycle life reaches more than 250 times



High Capacity 21700 Battery

Application of INR 21700 Cells

Electric Vehicles (EVs): such as electric cars, electric bicycles, electric scooters, etc., provide strong power support and longer driving range.

Portable Electronics: such as laptops, smart wearable devices, mobile power supplies, etc., ensure long-term use without frequent charging.

Energy Storage Systems (ESS): used for home or industrial energy storage to improve energy efficiency and reliability.

Power Tools: such as electric drills, lawn mowers, vacuum cleaners, etc., provide efficient and long-lasting power output.

Medical Devices: such as portable medical monitoring equipment, ventilators, etc., ensure stable operation and safety of equipment.


High Capacity 21700 Battery excels in capacity and safety:

Capacity:

Energy density: High energy density means more energy can be stored in the same volume, providing longer battery life.

Cycle life: After more than 1,000 charge and discharge cycles, it can still maintain a high capacity retention rate, ensuring stable performance in long-term use.


Safety:

Built-in protection circuit: Including overcharge protection, over-discharge protection, short circuit protection and temperature protection, effectively preventing safety problems caused by improper use of the battery.

Material selection: High-quality positive and negative electrode materials and electrolytes are used to reduce the risk of internal short circuits and thermal runaway.

Strict quality control: International standards are strictly implemented during the production process, and multiple safety certifications (such as PSE, CB, BIS, CE, TUV, IEC 62133-2, RoHS 2.0, UL2580, etc.) are passed to ensure the safety and reliability of the product.

Temperature management: Good thermal management design ensures that the battery can work normally under extreme temperature conditions and extend its service life.


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