Product Code: 1496607



Main Products:

Lithium battery,ECU,steel pipe

Contact Info.
battery, e-bike battery
  • FOB Price
  • Min. Order
    100 Piece(s)
  • Payment Terms
    -- --
  • Port
  • Delivery Time
    3 days after payment
  • Type:
    Lithium Battery
  • Voltage:
  • Capacity:
    31 - 40Ah
Product Description

electric vehicle battery.electric bike battery
electric bicycle battery.e-bike battery
All kinds of OEM ODM lithium battery

Hangzhou Longer Industry Co.,ltd is specialized in OEM,ODM service of all kinds of lithium batteries. With many years of expertise in research, development, marketing, manufacturing and distributing Lithium Battery Packs, Longer's management team combines expertise and innovative concepts and has already become the main lithium battery pack supplier of the top laptop and electric tool manufacturers in mainland China, Taiwan and other countries.Our batteries are CE,SGS certificated.


      Equipped with the expert R& D team and supported by experienced product engineers, Longer has always been focusing the exact demands by its clients for the application of Lithium-ion Battery Packs. Combined with scientific management of the whole process of the producing while meeting clients' requirement and providing valued suggestions and modifications at the meantime, Longer is capable of the long-term production of customized and high level Lithium-ion Battery Packs for its decent partners


Longer always treasures customers' benefits and put huge effort on the aftermarket service. The satisfaction from the customers sustains the business of Longer and has been always the fortune of Longer.


A: Demand Analysis

B: Design Report & Primary Quoting

C: Structure Design & Circuit Design

D: Sample Confirmation & Business Execution

E: Design Confirmation & Preparation of Engineering

F: Industralization

Quality control:

In-process quality assurance

                   Statistical Process Control

                   Basic Process Inspection (Quality Control Schedule)

                   Inspection of Operator's Qualification

                   Fixed Time Inspection of Testing Equipment

                   Management of Defective Products and Control Improvement

                   Employee Performance Evaluation

                   5S and QCC

Reliability     Inspection of Short Circuit Protection

                   Inspection of Over Charge Protection

                   Inspection of Over Discharge Protection

                   Inspection of Over Current Protection

                   Inspection of Load Function


Security       Over Charge Test

                   Concussion Test

                  Heavy Object Impact Test

                  Short Circuit Test

                  Temperature Circulation Test

                  Needle Stab Experimentation