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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: JK
  • Model Number: 403439
  • Type: Li-polymer
  • Nominal Voltage: 3.7v
  • Size: Prismatic
  • Nominal Capacity: 550mAh
  • Certification: CE,ROHS,ISO9001
  • Cycle: more than 300 times
  • MOQ: 500 peices
  • Thickness: 4.0mm
  • Width: 34.0mm
  • Length: 39.0mm
  • Warranty: 1year
  • Working temperature: -20~+60
  • Connector: Customized by customer

Packaging & Delivery

Packaging Details Standard export package or customized package
Delivery Time Shipped in 30 days after payment

Lipo battery 3.7V 550mAh lithium battery pack rechargeable battery for GPS trackerking




                             More                                  More                                                      More                                               More           








1. Description

Nominal Parameter   


2. Nominal Capacity



3. Nominal Voltage



4. Internal Resistance



5. Discharge Cut-off Voltage



6. Charge Voltage



7. Max Charge Voltage



8. Charging Time

Around 7 hours

Charge the battery at constant current of 0.2C to reach 

4.2V. Then charge the battery at constant 4.2V voltage 

until the charging current decreasing to 0.01C.

9. Standard Charging Current



10. Max Charging Current



11. Max Discharging Current



12. Weight

Around 9.90g










14. Storage

Less than 1 month


Recommend 20℃ when delivery

More than 6 months


15. Energy



16.  Dimension

Battery cell


Dimension with PCB:

































Order infomation

  • MOQ:1000pcs
  • Trade term: EXW
  • Payment term:T/T in advanced, others terms pls negotiate by email.
  • Delivery time: 3-5 working days for sample order, 7-20 working days for mass order  
  • Shipping way:By  Express or  Sea transportation
  • Packaging: Standard transportation packing.
  • Lead-time:  In stock: 7-10days, Out of stock: 25-30days
  • Warranty: 12 months



1.Are you factory?
:) Yea,we are factory at Shenzhen China. Welcome to visit our company at any time when you come to China.
2.OEM&ODM are available?
:) Sure, OEM&ODM are welcome.
3. How to confirm the quality with us before start to produce?
:) (1) You can get a free sample and choose from it, and then we make the quality accordingly.
    (2) Send us your samples, and we make the battery according to your quality.
4. How to solve the quality problems after sales?
:)  (1) Take photos of the problems and send to us
     (2) Take videos of the problems and send to us
     (3) Send back the physical problem battery by express to us
     After we comfirm the problems, such as caused by machine, production folw, etc, Within three working days, we will draw up the satisfied program for you.






 Sales Representative


Shenzhen Jinke Energy Development Co., Ltd

Phone/Whatsapp: +86 18665994551

Email: kevinsu(at)jk-energy.com.cn

Website: www.jk-energy.com.cn    

QQ: 1716120165    Skype: kevin.su520

Transaction History of the Supplier

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Transaction Overview


Transaction Details

This supplier has completedtransactions with buyers from .

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China (Mainland)
Transaction Level:
Supplier Assessments:
26 Transactions 270,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $159,000
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