HONG KONG TAC INDUSTRIAL CO., LTD.

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Home ProductsLithium Ion Cylindrical Battery

21700 Lithium Battery 3.7V 3000MAH 30C High Power for EV E-Car

21700 Lithium Battery 3.7V 3000MAH 30C High Power for EV E-Car

    • 21700 Lithium Battery 3.7V 3000MAH 30C High Power for EV  E-Car
    • 21700 Lithium Battery 3.7V 3000MAH 30C High Power for EV  E-Car
    • 21700 Lithium Battery 3.7V 3000MAH 30C High Power for EV  E-Car
  • 21700 Lithium Battery 3.7V 3000MAH 30C High Power for EV  E-Car

    Product Details:

    Place of Origin: guangzhou
    Brand Name: TAC
    Certification: CE\UN38.3\ROHS
    Model Number: 20700

    Payment & Shipping Terms:

    Minimum Order Quantity: 5000pcs
    Price: usd 3-5
    Packaging Details: 20pcs/ inner box , 5 box/ carton
    Delivery Time: 10 word days
    Supply Ability: 300000pcs /month
    Contact Now
    Detailed Product Description
    Material: Lithium Ion Battery Voltage: 3.7v
    Capacity: 3000mah Discharge Rate: 30C
    Size: D: 21mm H:70mm PVC Color: Blue
    Circle Life: 500 Times Current: Max Discharge Current 30C

    21700 Lithium Battery 3.7V 3000MAH 30C High Power for EV E-Car

     

    Feature for 21700 Lithium Battery 3.7V 3000MAH 30C High Power for EV E-Car

    new model 21700 similar with Tesla 

    high capacity 3000mah and high power support 30c discharge current

    21700 / 20700 size

     

     

     

     Period of Warranty

     

    The period of warranty is one year from the date of shipment. We guarantees to give a ccin case of cells with defects proven due to manufacturing process instead of the customer abuse and misuse.

     

    Storage of the Batteries

    The batteries should be stored at room temperature, charged to about 30% to 50% of capacity.
    We recommend that batteries be charged about once per half a year to prevent over discharge.

     

    Other The Chemical Reaction

    Because batteries utilize a chemical reaction, battery performance will deteriorate over time even if stored for a long period of time without being used. In addition, if the various usage conditions such as charge, discharge, ambient temperature, etc. are not maintained within the specified ranges the life expectancy of the battery may be shortened or the device in which the battery is used may be damaged by electrolyte leakage. If the batteries cannot maintain a charge for long periods of time, even when they are charged correctly, this may indicate it is time to change the battery.

     

     

    Specification for 21700  Lithium Battery 3.7V 3000MAH 30C High Power for EV E-Car

     

    No. Items Specifications

    Remark

    1

    Nominal Capacity

    3000mAh

    0.5C Standard discharge

     

    2

    Minimum Capacity

    2800mAh
    3

    Nominal Voltage

    3.7V

    Mean Operation Voltage

     

    4

    Delivery voltage

    3.70~3.9V

    Within 10 days from Factory

     

    5

    Charge Voltage

     

    4.2V±0.03V

    By standard charge method

     

    6

    Standard charging method

     

    0.5C constant current,4.2V constant voltage charge to 4.2V,continue charging till current decline to ≤0.01C

     

    7

    Charge current

    0.2C 600mA

    Standard charge, charge time about 7h(Ref)

     

    0.5C 1500mA

    Rapid Charge, charge time about: 3.5h(Ref)

     

    8

    Standard discharging method

     

    0.5C constant current discharge to3.0V,  
    9

    Cell Internal Impedance

     

    ≤35mΩ

    Internal resistance measured at AC 1KHZ after 50% charge

     

     

     

    Similar Model

     

    ICR18650 

    ICR14500

    ICR17335

    ICR16340

    ICR10280

    ICR10440

     

     

     

    Rated Capacity at 0.5C(Min.)

     

    After standard charge, the capacity shall be
    measured on 0.5C discharge till the voltage,discharge to2.75V, the capacity is ≥2800mAh

     

    Cycle Life:

     

    Charging and discharging battery as blew
    conditions 0.5C standard charge to 4.2V end-off1C standard discharge to 2.75V cut-off Continuous charge and discharge for 500cycles ,the capacity will be measure after the 500th cycle

     

    Capacity retention

     

    The battery to be charge in accordance with standard charge condition at 20~25℃,then storage
    the battery at an ambient temperature 20~25℃ for 28 days.
    Measure the capacity after 28 days with 0.2C at 20~25℃ as retention capacityThe battery to be charge in accordance with standard charge condition at 20~25℃,then storage battery at an ambient temperature 20~25℃ for 28 days.
    Measure the capacity after 28 days with 0.2C at  20~25℃ as retention capacity the Retention capacity

    should be over 80%

     

     

    Battery Photos

     

    21700 Lithium Battery 3.7V 3000MAH 30C High Power for EV  E-Car

     

    Packing

    21700 Lithium Battery 3.7V 3000MAH 30C High Power for EV  E-Car

     50pcs for one inner box ,  6 box for one carton

     

     

     

    Contact Details
    HONG KONG TAC INDUSTRIAL CO., LTD.

    Contact Person: Vivian

    Send your inquiry directly to us (0 / 3000)

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