
Fully Automated 18650 Line
Integrated sleeve insertion, coding and reflow for consistency and throughput.
Service as foundation, quality as survival, technology innovation as growth — a recognized name in dashcam power and an emerging force in security surveillance, with AI robotics ahead.
Shenzhen Rongshi Tongda Technology Co., Ltd. was founded in 2015 as a high-tech enterprise integrating lithium battery R&D, manufacturing and sales.
Through the continuous effort of every team member, we have become a recognized leader in the dashcam industry, established a presence in security surveillance, and are strategically positioned in AI robotics.
We operate quality control strictly to ISO 9001 and hold ISO 13485 medical-device certification, iterating product designs and integrating resources to sustain our competitive edge.
Capacity and manufacturing capability upgraded to match growing demand.
Regional footprint deepened; manufacturing and delivery strengthened.
Manufacturing base established in Dongguan; scaled production took shape.
Integrated production and sales, closer to customer needs.
R&D team formed, laying the foundation for product innovation.
Shenzhen Rongshi Tongda Technology Co., Ltd. established, focused on lithium batteries.
Automated 18650 lines, MES monitoring, climate control and QR-code traceability build a fully auditable manufacturing system.

Integrated sleeve insertion, coding and reflow for consistency and throughput.

Balances flexibility and efficiency for multi-variant, small-batch orders.

Automated protection-module welding improves reliability and yield.

Full scan testing with automatic data recording and traceability.

Full open-circuit-voltage inspection with visualised cell-voltage management.

Precision marking and vision inspection for clear identification and controlled appearance.
All new products must pass safety testing before mass production, with critical parameters fully traceable.
ISO 9001 quality management plus ISO 13485 medical-device quality management, under double standards.
X-RAY, salt spray, air tightness, high temperature, vibration, drop, capacity grading, humidity chamber, impact, short circuit and solar-panel testing.
MES monitoring, QR-code traceability, scan testing, K-value testing and visualised cell-voltage monitoring.
Climate monitoring, fixed-location storage and first-in-first-out for stable storage quality.
End-to-end static elimination, dedicated protection-module handling, cleanroom cleanliness assurance.
Rapid response to customer needs, with a product engineering team for in-depth collaboration.
Products carry UN38.3, ISO 13485, RoHS, IEC 62133, UL, FCC, KC, CB, CE and Battery Directive approvals, plus multiple design patents. Click any certificate to view the original.
We are fortunate to participate in its construction, with clear staged goals driving continued investment.
Increase automated production lines to 5 within the next 2–3 years, raising automation further.
Grow cylindrical battery sales volume by 50% within 1–3 years, deepening our core category.
Rongshitongda aims to become a recognized leader in the security surveillance field within 3–5 years.