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3.7V 4.2V 4000mAh Polymer Lithium Ion Batteries for model airplane

    Buy cheap 3.7V  4.2V 4000mAh Polymer Lithium Ion Batteries for model airplane from wholesalers
     
    Buy cheap 3.7V  4.2V 4000mAh Polymer Lithium Ion Batteries for model airplane from wholesalers
    • Buy cheap 3.7V  4.2V 4000mAh Polymer Lithium Ion Batteries for model airplane from wholesalers
    • Buy cheap 3.7V  4.2V 4000mAh Polymer Lithium Ion Batteries for model airplane from wholesalers
    • Buy cheap 3.7V  4.2V 4000mAh Polymer Lithium Ion Batteries for model airplane from wholesalers

    3.7V 4.2V 4000mAh Polymer Lithium Ion Batteries for model airplane

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    Brand Name : TAC
    Model Number : 9042125HP-4000MAH 3.7V
    Certification : IEC62133, UL1642 ,ROHS
    Price : USD8-9
    Payment Terms : T/T
    Supply Ability : 100000pcs
    Delivery Time : 15-20day after order
    • Product Details
    • Company Profile

    3.7V 4.2V 4000mAh Polymer Lithium Ion Batteries for model airplane


    Prismatic Pouch Cells High Power 3.7V 4.2V 4000mAh Battery for Model Airplane


    Specification For Prismatic pouch cells high power 3.7V 4.2V 4000mAh battery for model airplane


    ItemsSpecificationRemark
    Capacity4Ah0.2C Standard discharge
    Nominal Voltage3.7VMean Operation Voltage

    Voltage at end of Discharge


    3.0V

    Discharge Cut-off Voltage


    Charge Voltage4.2V±0.03VBy standard charge method
    Cell Internal Impedance≤300ΩIEC standard
    Maximum charge current40CFor continuous charging mod
    Maximum discharge current80CFor continuous discharge mod

    Operation Temperature Range


    Charge:0~45℃

    60±25%R.H.

    Bare Cell


    Discharge:-20~60℃

    60±25%R.H.

    Bare Cell

    Storage Temperature Range


    Less than 1 year: -20~25℃

    60±25%R.H.

    at the shipment state


    less than 3 months: -20~40℃

    60±25%R.H.

    at the shipment state

    Weight


    Approx: 8g


    Finished Cell

    Pack Dimension


    Height 42mm*Width125mm Thickness 9 mm


    max



    Initial Performance Test


    Item


    Test Method and Condition


    Requirements


    • Open-Circuit

    Voltage


    The open-circuit voltage shall be measured within 24 hours after standard charge.


    ≥3.7V
    • Internal impedance

    Internal resistance measured at AC 1KHz after 50% charge.


    ≤12mΩ
    • Minimal Rated

    Capacity


    The capacity on 0.2C5A discharge till the voltage tapered to 2V shall be measured after rested for 30min then finish standard charge.

    Discharge Capacity


    ≥4000mAh


    Temperature Dependence of discharge capacity


    Cells shall be charged per table 1 and discharged @0.2C5A to 2 volts. Except to be discharged at temperatures per Table 4. Cells shall be stored for 3 hours at the test temperature prior to discharging and then shall be discharged at the test temperature. The capacity of a cell at each temperature shall be compared to the capacity achieved at 23 ºC and the percentage shall be calculated. Each cell shall meet or exceed the requirements of Table 4.


    Handling of Cells


    Consideration of strength of film package

    Soft Aluminium foil

    Easily damaged by sharp edge parts such as pins and needles, Ni-tabs, comparing with metal-

    can-cased LIB.


    Sealed edge may be damaged by heat above 100°C, bend or fold sealed edge.


    Prohibition short circuit


    Never make short circuit cell.

    It generates very high current which causes heating of the cells

    may cause electrolyte leakage, gassing or explosion that are very dangerous.


    The LIP tabs may be easily short-circuited by putting them on conductive surface.


    An appropriate circuitry with PCM shall be employed to protect accidental short circuit of the

    battery pack.


    LIP cells have less mechanical endurance than metal-can-cased LIB.

    Falling, hitting, bending, etc. may cause degradation of LIP characteristics.


    Handling of tabs


    The battery tabs are not so stubborn especially for aluminum tab.

    Don’t bend tab.

    Do not bend tabs unnecessarily.


    Manner for Packing


    Picture for LiPO battery 3.7V 16AH High power 20C discharge li-ion battery for UAV


    single cell


    battery pack with PTC and wire or connector



    There are 16 different size of 3.7V 4.2V 4000mAh Polymer Lithium Ion Batteries to meet your size limit require


    MODELCAPACITYMIN CAPACITYINNER RESISTANCEVOLTAGEPERFORMANCEMAX SIZE/mm
    mAhmAhVcharge currentdischarge currentTWH
    88399840004000503.7≤0.5C≤1C8.839.598.5
    504414740004000503.7≤0.5C≤1C4.844.0146.0
    65458940004000403.7≤0.5C≤1C6.545.589.0
    085010040004000403.7≤0.5C≤1C7.850.0100.5
    69567040004000503.8≤0.5C≤1C6.856.068.5
    525810240004000603.8≤0.5C≤1C5.258.0102.0
    60608040004000503.7≤0.5C≤1C6.060.080.0
    526010540004000503.7≤0.5C≤1C5.260.0105.0
    42649040004000453.8≤0.5C≤1C4.164.090.5
    60658040004000503.7≤0.5C≤1C6.065.080.0
    10665040004000503.7≤0.5C≤1C10.066.050.0
    75627640004000503.7≤0.5C≤1C6.862.575.0
    2710310740004000403.8≤0.5C≤1C2.898.5101.5
    406611540004000403.7≤0.5C≤1C4.066.5115.5
    427411540004000403.7≤0.5C≤1C4.274.0115.5
    3210010040004000403.7≤0.5C≤1C3.2100.5100.5

    Tac Production Charging And Discharging Test Room


    Poymer battery production Line


    Quality 3.7V  4.2V 4000mAh Polymer Lithium Ion Batteries for model airplane for sale
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