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4400mah Portable Lighting Battery DIY Battery Pack 18650 Battery Cell 8.4V

4400mah Portable Lighting Battery DIY Battery Pack 18650 Battery Cell 8.4V

    • 4400mah Portable Lighting Battery DIY Battery Pack 18650 Battery Cell 8.4V
    • 4400mah Portable Lighting Battery DIY Battery Pack 18650 Battery Cell 8.4V
  • 4400mah Portable Lighting Battery DIY Battery Pack 18650 Battery Cell 8.4V

    Product Details:

    Place of Origin: Shenzhen China
    Brand Name: DELONG
    Certification: CE, Rohs, MSDS,FCC, ect.
    Model Number: DEL-Y002

    Payment & Shipping Terms:

    Minimum Order Quantity: 500pcs
    Price: Negotiation
    Packaging Details: export standard package
    Delivery Time: Sample: 7-10 days, Mini order: 10-15working days
    Payment Terms: T/T, PayPal,Western Union ect.
    Supply Ability: 20000pcs per month
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    Detailed Product Description
    Battery Type: Grade A18650 Battery Cell Capacity: 4400mah
    Norminal Voltage: 7.4V Full Charge Volt.: 8.4V
    Guarantee: 1 Year Dimension: 36*36*68mm
    Working Temp.: 0~45℃ Charging Method: CC-CV
    Internal Resistance: ≤200mΩ Drop Test: One By One

    4400mah Portable Lighting Battery DIY Battery Pack 18650 Battery Cell 8.4V






     Name  7.4V Emergency Lighting Batteries




     4400mah , 5200mah

     Cell Type

     A grade A 18650 battery

     Discharge Current

     0.5C- 1C, for start Motor could customize Use 3C Battery cell

     Max. Discharge      Curretnt  4A

     Norminal Voltage


     Full charge Voltage






     PVC Color

     Black or Blue

     Charge Plug  DC 5.5*2.1MM Female or Male Port As your requirement


     Intelligent protection functions for short circuit,

     Over charge/discharge,

     Over-load, and  temperature protection


     1 year



     Life time


     Lead time

     7-12 days for sample and small order

     12-25 days for  bulk order

     Payment terms

     T/T, Paypal, Western Union

     (30% deposits, 70% balance before delivery)

     Package and  Accessories 

    1x Battery with case 1x 2A Charger 




    A. Extremely safe and stable chemistry: PCB and/or BMS built inside to balance protect the battery.


    B. Long life-cycle: best can up to 800 times recycles, 4 times of Lead acid battery.


    C. Portable for Bicycle light, working temperature from -20~60℃


    D. Good performance at high temperature and high temperature resistance


    E. Low self-discharge rate, less than 3% monthly.


    F. No memory effects and highly efficient charge.


    G. Environment friendly: Clean and Green energy poses no pollution on our environment.


    Trading detail: 


    1.  We accept payment via PayPal, Western Union and T/T for sample and T/T for wholesale order.


    2.  We will send you proforma invoice with payment needed information after confirming all related terms.


    3.  The payments are expected within 3-5 days after T/T payment.


    4.  The bank fee by T/T will be bear by buyer as seller has our own bank fee.


    5.   Please send by T/T receipt and at least tell me your paid, so that we can pay our attention to check it and inform of you the payment after getting it on bank account.


    6.  Sample MOQ: 1 pcs





    1. Large-scale electric vehicles: electric bus, electric car, E-Tour Car


    2. Light electric car: ebike, electric scooter,emotor, electric golf car, forklift, cleanness car, electric



    3. E-tool: electric drill, electric saw, lawn mower and so on


    4. Remote control cars, boat, aircraft, toys


    5. Solar and wind power generation energy storage devices


    6. Small medical equipment and portable equipment





    (1) 12 months warranty 


    (2) Quickly solve the problem


    (3) Reply you within 24hours


    (4) Any non-intentional damage will be repaired by free.


    Major Features:


    1.Excellent safety performance.


    2.Light weight: The polymer lithium cell is 40% lighter than the same specification of the steel liquid lithium cell,and 20% lighter than aluminium shell liquid lithium cell.


    3.High capability: The polymer capacity is 10-15% more than the same specification steel shell and aluminium shell liquid lithium cell.


    4.Low internal resistance:


    5.Excellent discharge performance.


    6.Simple PCB design: Due to adopt the polymer materials, the battery has enough safety and don't explode,the PTC and fuse can be omited for cost reduce.


     About us:


    1. Shenzhen Delong Energe Technologe Co. Ltd. was established in 2006.


    2. The core competencies is power bank, li-polymer battery and ebike battery.


    3. The nich market is Eurpoand America India


    4. 8 years experiences in battery field, 3 years experiences in export power bank field




    1. What's the MOQ of your products?


    No MOQ Limit before bulk orders. sample order is welcome


    2. Can you customeize packaging?


    Yes, MOQ must reach 3000pcs and it is for free , and please offer us the original design drawing.


    3. Can the power bank have customized writing or logo on them?


    Yes, we can make any kinds of the customerized writing or logo on the battery and MOQ is 500pcs. Single color is for free.


    4. What's the accessories included in the price list?


     One battery with 12.6V 2A Charger


    5. What is the lead time ?


    Sample is 7-10 working days, mass production is 12-25 days after payment confirmed


    6. Are your a trade company or real factory?


    We are a original factory with year's manufacturing experience.


    Contact Details:


    Skype: Kristten Wei

    Email: sales006@delongbattery.com



    Contact Details
    Shenzhen Delong Energy Technology Co.,LTD

    Contact Person: Kristen

    Send your inquiry directly to us (0 / 3000)