3.7V 4000mAh 5000mAh li-ion rechargeable 21700 battery cell

Strong production ability. our factory covers an area of 20000 square meters, which is fully equipped with the most advanced auto production facility, plus over 200 skilled workers, our daily output of cells reaches 200-300 thousand pieces, battery pack and finished battery reaches 60-100 thousand pieces.

Support OEM. We are professional manufacturer of Lithium polymer batteries, with modern R& D department and lots of experienced engineers, we can design products as per your demands, then customize battery and assembly solution to meet your special application requirements.

CSIP Technology has been certified by ISO9001 Quality Management System, ISO14001 Environment Management System, OHSAS18001 Occupational Health and Safety Management System. Our products are certified by UL, CE, KC, PSE, CB, RoHS, etc. Relying on superior quality, attentive service, mature technics, advanced equipment, and all employees' hardworking, our company is gradually becoming influential among domestic Li-polymer manufacture enterprises.

Standard export shipping package

1. who are we?
We are based in Guangdong, China, start from 2018,sell to Northern Europe(20.00%),Southeast Asia(20.00%),Domestic Market(17.00%),Eastern Europe(15.00%),North America(15.00%),Western Europe(13.00%). There are total about 301-500 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
soft package Lithium polymer battery,small size lithium polymer battery,High rate LiPo battery,Lithium polymer battery pack,Lithium ion battery

4. why should you buy from us not from other suppliers?
We are professional manufacture of small size soft package lithium polymer batteries.More than 20 years of Lithium Battery design and research, quality management and other rich experience of Ph.D. and Master of Science , we can design, R&D and produce bat

5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,Express Delivery；
Accepted Payment Currency:USD;
Accepted Payment Type: T/T,L/C,Western Union;
Language Spoken:English,Chinese,Japanese,French,Korean