HRL lithium Lipo 3.7v batteries 300mah for sport watch

  • Model Number: hrl902030
  • Place of Origin: Guangdong, China (Mainland)
  • Type: li- polymer battery
  • Nominal Voltage: 3.7v
  • Nominal Capacity:: 500mAh
  • MOQ: 1000PCS
  • Weight: 13g
  • Warranty: 1year
  • cetifications: UN38.3,MSDS,KC, UL2054,IEC62133
  • Product Detail

    Product Tags

    Product ItemHRL lithium Lipo 3.7v batteries 300mah for sport watch

    Datails Pictures:

    902030 500mah-3







    Nominal Capacity





    Nominal Voltage



    Initial Impedance



    Limited Charge Voltage



    Discharge Cut-off Voltage



    Charge Current

    Standard Charge: 0.2C

    Rapid Charge: 0.5C


    Standard Charge

    0.2C 5A CC(constant current) charge to 4.2V, then CV(constant voltage) charge till charge current decline to 0.02C.


    Standard Discharge

    0.2 C5A discharge to the Discharge Cut-off Voltage.


    End-of-Charge Current

    0.02 C5A


    Max Continuous Charge Current



    What can 3.7 small lipo batteries cells applicable for?

    The sport watch can pick up the phone, reply to the email, support the electromagnetic charging, and the battery life is one day. APEX sport watch is a powerful sports with HRL lithium Lipo 3.7v batteries 300mah for long working time.

    30 day+ HRL lipo batteries life; always on monochrome display; glanceable notifications, no touch screen or complicated menus, so the lens is always clean; compatible with most iOS, Android and Windows 10 smartphones

    SportsWatch lipo batteries 3.7v 300mah


    • smart wristbandcredit card,smart watch
    •  Digital productsPOS device,Sport equipment
    • MP3/MP4/MP5, digital camera, PSP ,POS machine, medical devices, flashlight, search light.
    •  bike lights, flashlights, head lamps, mini flashlights(LED), rechargeable torchlights, scuba lights, solar lights, hearing aids...

    Factory show:

    HRL 3.7v Lithium battery packs


    Q:Are you manufactory?

    A:Yes, we are professional mammnufacturer for polymer batteries since 2008

    Q:What is MOQ for this product in your caompany?

    A:We accpet mini order.

    Q:When you ship my order?

    A:Normally 35-45days affter payment confirmed, but it can be negotiated based on order qty and production schedule.

    Q:Can I get the pre-production sample?

    A:Yes, we will send you sample for approval first, affter you confirm, then we will start mass production order.

    Q:Can batterise size custome available?

    A:Yes, Please send ud the capacity and max battery size, so that we can search our model for you.

    Q:How about the quality grantee period?

    A:One Year.

    Q:How can you guarantee the production quality?

    A:We have more than 10 years of experience of polymer battery production. Our production quality follows strict control proceed. We have 3 times inspection for the finished product before package. All of our battrties are 100% tested and inspected before shipment.


    Customer Service

    1. HRL service OEM ODM designs and lables are welcome.
    2. HRL Professional sales team which provide consultant service and the best battery solutions.
    3. Most competitive factory price, can negociate for your requirement.
    4. Orders up to 1000 pcs, the sample fee can be refunded.
    5. HRL All products will be tested 100% before shipment to ensure that the product does not have any quality problems.
    6. Wide-range battery products to satisfy different customer’s requirement.


    Come and get one. Email us at info@hrl-battery.com

    call us at 0086-13723706392; or you can send us message below,

    we will reply you in time.

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