Battery Management System Module from China
Li-ion battery management system (BMS) module with cell balancing and protection functions for 4S packs. Classified HTS 8543.70.98 as electrical apparatus for battery monitoring, balancing, and safety control. Monitors voltage, current, temperature.
Duty Rate — China → United States
40.1%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Import Tips
• UN38.3 transportation and cell chemistry compatibility docs
• Overcharge/overdischarge voltage thresholds specification
• Complete battery vs BMS module critical distinction