EV BMS PCB

EV BMS PCB

The EV BMS PCB service covers 4 to 20 layers. This is a wide layer range. Boyastar started in 2008. We have built boards for 18 years. Our factory is in Guangde, Anhui, China. The plant covers 19,000 square meters. We have more than 150 employees. We produce about 50,000 square meters of PCB each month. In 2024, our partial thick copper PCB technology reached stable mass production. In 2025, we started a full zero-defect quality management system.
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Layers for Electric Vehicle BMS

The EV BMS PCB service covers 4 to 20 layers. This is a wide layer range. Boyastar started in 2008. We have built boards for 18 years. Our factory is in Guangde, Anhui, China. The plant covers 19,000 square meters. We have more than 150 employees. We produce about 50,000 square meters of PCB each month. In 2024, our partial thick copper PCB technology reached stable mass production. In 2025, we started a full zero-defect quality management system. The EV BMS PCB service combines thick copper technology with the zero-defect system. This board sits in electric vehicle BMS and hybrid vehicle BMS. It handles battery main control and slave control. We use high TG FR-4 as the base material. Thick copper carries large current. Pure electric, plug-in hybrid, energy storage systems, home energy storage, commercial and industrial energy storage, and base station backup power are all suitable. High-voltage boards, large-current boards, and high-reliability boards can be sent as Gerber files.
product-800-800

 

High-Voltage Safety and Material Choice

High CTI FR-4 is available. Impedance control, blind and buried vias, and BGA are all familiar to us. Surface finishes include immersion gold, HASL, and OSP. Immersion silver, immersion tin, and hard gold plating are also available. Our engineering team has more than ten engineers. They help with high-voltage safety review and current carrying review. They send a formal quote and lead time within 24 hours. We accept OEM and ODM orders. We build from drawings or prototypes. Layer count, stack-up, board thickness, copper thickness, base material, surface finish, solder mask color, silkscreen color, impedance, blind and buried vias, BGA, and packing are all customizable. The high-voltage part and low-voltage collection part must be strictly isolated on BMS boards. We keep enough isolation distance in the stack-up design. This prevents crosstalk and breakdown. Energy storage BMS boards stay on the grid for years. We choose base materials with good aging resistance.
product-800-800

 

Safety Tests and Full Traceability

High-voltage failure is a top risk for EV BMS boards. We run high-voltage tests, insulation tests, and impedance tests. We confirm the first article before mass production. We keep records for every step from incoming material to final shipment. Our quality team has more than 20 people. Every board gets 100% electrical testing before packing. We use AOI and flying probe testing. We accept third-party inspection. Our factory holds IATF16949, ISO9001, ISO14001, and ISO45001. We hold Underwriters Laboratories product safety certification. The file number is E528398. The EV BMS PCB service gives buyers a reliable path for electric vehicle battery management.
product-800-800

 

Specifications Buyers Need to Know

Parameter

Content

Product Type

EV BMS PCB for electric vehicle and hybrid vehicle battery management systems

Base Material and Layers

High TG FR-4, high CTI FR-4; supports 4 to 20 layers

Key Processes

Thick copper process, large current transmission, impedance control, blind and buried vias, BGA

Surface Finish

Immersion gold, HASL, OSP, immersion silver, immersion tin, hard gold plating optional

Engineering Support

High-voltage safety review and current carrying capacity review

 

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