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Safety Rechargeable Lifepo4 Flat Cells Easy Charging Ventilated Place Storage

Safety Rechargeable Lifepo4 Flat Cells Easy Charging Ventilated Place Storage

    • Safety Rechargeable Lifepo4 Flat Cells Easy Charging Ventilated Place Storage
    • Safety Rechargeable Lifepo4 Flat Cells Easy Charging Ventilated Place Storage
    • Safety Rechargeable Lifepo4 Flat Cells Easy Charging Ventilated Place Storage
    • Safety Rechargeable Lifepo4 Flat Cells Easy Charging Ventilated Place Storage
    • Safety Rechargeable Lifepo4 Flat Cells Easy Charging Ventilated Place Storage
  • Safety Rechargeable Lifepo4 Flat Cells Easy Charging Ventilated Place Storage

    Product Details:

    Place of Origin: China(Mainland)
    Brand Name: Seplos
    Certification: CE
    Model Number: Seplos S50

    Payment & Shipping Terms:

    Minimum Order Quantity: 50
    Price: $55.00 / Piece
    Packaging Details: One gift box, one battery; One carton box, six gift boxes.
    Delivery Time: 5-8 work days
    Payment Terms: T/T ,Western Union,MoneyGram
    Supply Ability: 10000 Piece/Pieces per Month
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    Detailed Product Description
    Quality Guarantee: Three Months For Free Replacement(shipping Free Warranty: 12 Months
    Free Sample: Viable Battery Type: LiFePO4 Rechargeable Li-ion
    Weight: ≤0.87Kg Capacity: 50AH
    Single Package Size : 14.8X2.7X9.1 Cm Single Gross Weight: 0.87 Kg
    High Light:

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    China supplier long cycle life Seplos S50 3.6V 50ah lithium ion Rechargeable LiFePO4 battery cell for solar storage
    Product Description

    1. Scope

    This specification is apply to Seplos company cells


    2.Model :S50


    3. External Appearance

    The cell / battery shall be free from cracks, scars, breakage, rust,discoloration, leakage and deformation.


    4. Ratings

    The data involving the nominal voltage and the approximate weight of the battery pack.






    General Parameter



    1 Model S50 single


    Casing material for single cell





    Standard capacity1.0C3A



    Mininum Capacity1.0C3A



    Rated voltage



    Max.Charge voltage



    Cut-off voltage


    Standard charge&discharge

    50A 1C3A


    charging Time

    About 1hours 1C3A


    Max Continuous discharge current

    50A 1.0C3A


    Peak discharge current

    100A 1.5C3A33mintues
    12 thick 27.0 ±0.2 mm  
    13 wide 148±0.2 mm  
    14 height 97±0.2 mm  


    Weight(Approx,including case)


    Max, at 500Hz.

    ImpedanceMax, at 500Hz.



    Charge method




    CC 1.0C3


    3.65V cut off

    CV 3.65V


    0.05C cut off



    Operate temperature











    5. Performance

    Unless otherwise stated, tests should be done within one month of delivery under the following conditions:

    Relative humidity:65±20% RH.

    Ambient Temperature(Ta) :25±2℃.

    ***Notes:Standard charge / discharge condition:

    Charge:50A (1.0C3) to 3.65V unless the current come up to 5A;

    Discharge:50A (1.0C3) to2.8V/cell.

    ***The batteries must be standard discharged before charging.

    ***Battery test vide infra:

    5.1electrochemistry performance








    Testing method



    Discharge performance in normal temperature

    Discharge capacity /standard capacity×50%

    (A)1.0C3A ≥50%

    (B)1.5C3A ≥98%

    Charge with 1C3A standard charge in the condition of temperature 25℃±5℃,relative humidity 45%~80% if there is no especial statement,the charging way is same as this, rest for 10min,separated discharge with 1.0C3A,1.5C3A to cut-off voltage 2.8V,cycles for three times,One cycle capacity arrive standard, that’s to say it is qualified.(The below as the same)



    Charging keep ability in normal temperature

    Remain capacity≥standard capacity *97%


    After standard charged,rest it in 25℃±5℃ for 1 months. Then discharge with 1.0C3A to 2.8V, testing the battery capacity.


    Cycle life

    Capacity≥ nominal capacity *80% After 1.0C3 standard charged ,discharge with 1.0C3A to for10min,cycles for3500 times.


    Storage performance

    Capacity can be kept ≥90% Storage for 12 months. After standard charged,rest for 12 months,discharge with 1.0C3A to 2.8V,test the remain capacity;

    5.2 environment adaptive performance








    Testing method



    Temperature Cycle performance

    No smoking ,no exploding, No fire After standard charged,keep the battery for 48hrs under 60±2℃, then rest for 6hrs under -10 ℃±2℃,then rest for 24h under normal temperature, discharge with 1.0C3A to 2.8V.with 1.0C3/1.0C3charge and discharge cycle for 3 times.


    invariableness moist heat performance


    Discharge capacity / standard capacity×50%>60%

    No exploding, No fire

    After standard charged,keep in constant temperature and humidity case for 48hs under 40±5℃,relative humidity 90%,then rest for 2h,discharge with 1.0C3A to 2.8V.



    Discharge performance in different temperature

    Discharge capacity /Rated capacity ×50%

    (A)60 ℃≥95%;

    (B)0 ℃ ≥90%;

    (C)-10 ℃ ≥80%;

    No exploding, No fire

    After standard charged,constant temperature rest for 3hrs in 60±2℃,discharge with1.0C3A to 2.8V,standard charge in normal temperature, separated rest for 20hrs in order 0±2℃,-10±2℃,test the last capacity with 1.0C3A,Then rest 2h in the normal temperature.


    5.3(Safe performance)








    Testing method



    Over-charge performance

    No exploding, No fire After standard charged ,Battery status should be ensure the normal (the same below),charge with 1C to 5.4V, check the temperature and appearance of the battery.


    Over-discharge performance

    No exploding, No fire, No weeping After standard charged,discharge with 1C3 for 90min,rest for 90min.


    Short-circuit performance

    No exploding, No fire After standard charged,keep the battery pack in explosion-proof box and connect positive and negative to short-circuit for 10min(the total impedance should not be over than 5mΩ,check the temperature and appearance of the battery.


    Other safety performance

    Meet the requirement of GB/T 31485-2015 For test method details, please refer to GB/T 31485-2015


    6. Configurations, Dimensions And Markings

    Please refer to the related drawing.


    7. Cautions

    1. Reverse charging is not acceptable.


    2. Charge before use,use the correct charger for Ni-MH batteries.


    3. Do not charge / discharge with more than the specified current.


    4. Do not short circuit the cell / battery.


    5. Do not incinerate or mutilate the cell/battery.


    6. Do not solder directly to the cell / battery.


    7. The life expectancy may be reduced if the cell / battery is subjected to adverse conditions,

    like extreme temperature, deep cycling, excessive overcharge /over-discharge.


    8. Store the cell / battery in a cool dry place.


    9. For charging methods please reference to TMK technical handbook.


    10. When find battery power down during use,please switch off the device to avoid over discharge.


    11. When not using a battery, disconnect it from the device.


    12. well-ventilated place out of direct sunlight.


    13. When the battery is hot, please do not touch it and handle it, until it has cooled down.


    14. Do not mix TMK batteries with other battery brands or batteries of a different chemistry such as alkaline and zinc carbon batteries.


    15. Do not mix new batteries in use with semi-used batteries, battery may be over-discharged.


    16. Do not attempt to take batteries apart or subject them to pressure or impact.Heat may be generated or fire may result.The alkaline electrolyte is harmful to eyes and skin,and it may damage clothing upon contact.


    17. Keep away from children. If swallowed, contact a physician at once.




    Safety Rechargeable Lifepo4 Flat Cells Easy Charging Ventilated Place Storage
    Our Company
    Safety Rechargeable Lifepo4 Flat Cells Easy Charging Ventilated Place Storage
    Our Service

    1. OEM Manufacturing welcome: Product, Package...
    2. Sample order
    3. We will reply you for your inquiry in 24 hours.
    4. after sending, we will track the products for you once every two days, until you get the products. When you got the
    goods, test them, and give me a feedback.If you have any questions about the problem, contact with us, we will offer
    the solve way for you.


    Q1. What is your terms of packing?
    A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent,
    we can pack the goods in your branded boxes after getting your authorization letters.

    Q2. What is your terms of payment?
    A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages
    before you pay the balance.

    Q3. What is your terms of delivery?

    Q4. How about your delivery time?
    A: Generally, it will take 30 to 60 days after receiving your advance payment. The specific delivery time depends
    on the items and the quantity of your order.

    Q5. Can you produce according to the samples?
    A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

    Q6. What is your sample policy?
    A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and
    the courier cost.

    Q7. Do you test all your goods before delivery?
    A: Yes, we have 100% test before delivery

    Q8: How do you make our business long-term and good relationship?
    A:1. We keep good quality and competitive price to ensure our customers benefit ;
    2. We respect every customer as our friend and we sincerely do business and make friends with them,
    no matter where they come from.

    Contact Details
    Shenzhen Seplos Technology Co.,Ltd

    Contact Person: Zhang

    Tel: 13286686628

    Send your inquiry directly to us (0 / 3000)

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    Shenzhen Seplos Technology Co.,Ltd
    Building B,Yajiashi Industrial park,No89,Huating Road,Langkou District,Dalang Zone,Baoan District,Shenzhen China(Mainland) 518109
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