Cylindrical Lithium Batteries
Cylindrical cells in the common industry formats, sourced to your capacity, discharge rate and cycle-life requirement.
- 18650
- 21700
- 26650
- 32700
Lithium Batteries · Shenzhen, China
Certified Li-ion cells and packs, built to your specification.
We supply and customise lithium-ion cells and battery packs with the certification and transport documentation your market asks for — IEC 62133-2 CB certified, with air transport classification already on file.
- IEC 62133-2
- CB Scheme
- UL Solutions
- DGM Transport Report
IEC 62133-2Certified cell models
UL SolutionsCB certificates issued by
DGMAir transport report on file
ShenzhenBao'an District, Guangdong
Products
Four product lines
Cells, packs and the electronics that manage them. Certification status varies by configuration — the certificates listed on this page name the specific models they cover, and other configurations can be tested on request.
Polymer Lithium Batteries
Pouch and polymer cells for compact and space-constrained designs, including custom dimensions and shaped cells where the enclosure demands it.
- Custom dimensions
- Thin profile
- Shaped cells
Battery Pack Assembly & Design
Pack design and assembly — cell matching, mechanical layout, connector and enclosure integration built around your form factor.
- ODM / OEM
- Custom voltage
- Enclosure design
BMS Design & Customisation
Battery management system design — protection, cell balancing, state estimation and communication protocol integration.
- BMS design
- Balancing
- Protocol integration
Capabilities
What we do for you
We are a Shenzhen-based supplier and integrator. Our job is to get a battery that passes your market's requirements into your product, with the paperwork that lets it clear customs.
01
Custom specification
02
ODM & OEM cooperation
03
Certification pathway
04
Air transport documentation
05
Battery management integration
06
Export & shipping paperwork
07
Sample & prototype supply
08
Small to mid volume orders
09
Technical documentation pack
10
Direct engineering contact
How We Work
From enquiry to shipment
A defined step at every stage, so you always know where your order stands.
-
01
Requirement review
You give us voltage, capacity, dimensions, quantity and destination market. We tell you what is feasible.
-
02
Specification
We select the cell platform and release a specification for your approval before anything is built.
-
03
Sampling
Sample cells or packs shipped for your own bench and field testing.
-
04
Testing & certification
Where required, testing through accredited laboratories on the IEC 62133-2 CB pathway.
-
05
Production
Manufactured to our released specification by qualified production partners, under our own quality control.
-
06
Documentation & shipping
Test reports, transport classification, MSDS and export documents issued with the shipment.
Compliance
Certificates & test reports
Every document below can be verified independently. CB certificates and test reports are listed in the IECEE online database under their reference numbers — you are welcome to check them, and to ask us for the full copies.
- CB Test Certificate IEC 62133-2
- CB Test Report IEC 62133-2
- CB Test Certificate IEC 62133-2
- CB Test Report IEC 62133-2
- Air Transport DGM Identification Report
About Us
Batteries, and the control electronics behind them
Shenzhen SUNDA Intelligent Control System Co., Ltd. is based in Bao'an District, Shenzhen — the centre of China's lithium battery supply chain. We supply lithium-ion cells and battery packs, and we integrate the battery management and control electronics that go with them.
We are a young company, and we would rather be judged on what we can prove. Our certified cell and pack platforms come with CB certificates and test reports you can verify in the IECEE database, plus the transport documentation needed to ship them. Our engineering contact is direct — you speak to the person who specifies your battery, not an account layer.
Talk to usWhat we offer
- IEC 62133-2 CB certified cells & packs
- Custom voltage, capacity & form factor
- BMS and control system integration
- Air transport classification on file
- ODM & OEM cooperation
- Samples and prototypes
Contact
Tell us what you need
Send us your voltage, capacity, dimensions, quantity and destination market. We will come back with a feasibility answer, the certification situation, and an indicative price.
- Contact Mr. Huang
- Email sundahqz@gmail.com
- Phone +86 150 1927 3843
- Address 13th Floor, Building A2, New Era Gongrong Industrial Park, No. 2 Shihuan Road, Shilong Community, Shiyan Subdistrict, Bao'an District, Shenzhen, Guangdong, China
- Hours Mon – Sat, 09:00 – 18:00 (GMT+8)