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ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH

    Buy cheap ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH from wholesalers
     
    Buy cheap ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH from wholesalers
    • Buy cheap ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH from wholesalers
    • Buy cheap ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH from wholesalers
    • Buy cheap ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH from wholesalers
    • Buy cheap ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH from wholesalers

    ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH

    Ask Lasest Price
    Brand Name : TAC OEM & ODM
    Model Number : 21700 400mah 3.7v
    Certification : MSDS REACH ROHS
    Price : USD 2.5 each pcs
    Supply Ability : 100000PCS EACH WEEK
    Delivery Time : 7-10 days after order confirm for stock model
    Payment Terms : 30% advance for battery Pack
    • Product Details
    • Company Profile

    ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH

    21700 Lithium Battery For Electrical Vehicle 3.7V 4000MAH

    Specification for 21700 Lithium Battery For Electrical Vehicle 3.7V 4000MAH

    No.ItemsSpecifications

    Remark

    1

    Nominal Capacity

    		4000mAh-5000mAH

    0.5C Standard discharge

    2

    Minimum Capacity

    		3800mAh-4800mAh
    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

    		0.2C400mA

    Standard charge, charge time about 7h(Ref)

    0.5C2000mA

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

    8

    Standard discharging method

    		0.5C constant current discharge to3.0V,
    9

    Cell Internal Impedance

    		≤50mΩ

    Internal resistance measured at AC 1KHZ after 50% charge


    Cell Electrical Performance


    NoItemsTest Method and Condition/
    		Criteria
    1

    Rated Capacity at 0.2C(Min.)

    After standard charge, the capacity shall be measured on 0.2C discharge till the voltage discharge to3.0V,

    		≥3800mAh≥100%

    Rated Capacity at 0.5C(Min.)

    After standard charge, the capacity shall be measured on 0.5C discharge till the voltage discharge to 3.0V,

    		≥3686mAh≥98%

    Rated Capacity at 1C(Min.)

    After standard charge, the capacity shall be measured on 1C discharge till the voltage discharge to 3.0V,

    		≥3534mAh≥96%
    2

    Cycle Life

    Charging and discharging battery as blew conditions
    0.2C standard charge to 4.2V end-off
    0.2C standard discharge to 3.0V cut-off
    Continuous charge and discharge for 300 cycles ,the capacity will be measure after the200th cycle

    		≥80% of initial capacity
    3

    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 30 days with 0.2C at 20~25℃ as retention capacity

    Retention capacity

    ≥85%

    Application for 21700 Lithium Battery For Electrical Vehicle 3.7V 4000MAH

    1. EV / E-CAR / E-SCOOTER /E-Bike
    2. Energy storage system// Portable ESS
    3. power tool /
    4. Solar production
    5. 21700 cells with cap in electric bikes.

    Package For Bulk

    20-50 pcs each box and 4 box pcs in one standard export carton
    Tac Also support display box and specially color carton for OEM ODM order




    Delivery Time Information

    7-10 days for bulk cell base on industry pack , this is normal model , we prepare the stock continue
    25-30 days for battery pack after the customer confirm the detail accessories for examples PCB Connector etc.

    Period of Warranty


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

    The suggestion for Storage of the Lithium-ion 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.

    Similar Model for Lithium ion Cylindrical Battery

    MODELCAPACITYVOLATGE
    ICR10440250-400MAH3.7V
    ICR14500450-600MAH3.7V
    ICR17335750-900MAH3.7V
    ICR184901100-1500MAH3.7V
    ICR185001500-1800MAH3.7V
    ICR186502000-2800MAH3.7V
    ICR266503000-3300MAH3.7V
    ICR207003500MAH3.7V
    ICR217004000MAH-5000MAH

    3.7V




    Battery Photo for Similar Model ( Bulk cell)




    Lithium-ion Battery Pack Made By ICR21700 4000MAH 3.7V




    Normally 21700 Cell positive is flat type , but we can support both of flat type and top type

    Flat Type



    TOP Type























































    Product Tags:

    lithium iron phosphate battery pack

      

    3.7v lithium ion battery

      
    Quality ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH for sale

    ROHS 21700 Lithium Ion Cylindrical Battery For Electrical Vehicle 3.7V 4000MAH

    Company Info.
    Guang Zhou Sunland New Energy Technology Co., Ltd.
    Verified Supplier
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