Battery Management System Module from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• UN38.3 transportation and cell chemistry compatibility docs
• Overcharge/overdischarge voltage thresholds specification
• Complete battery vs BMS module critical distinction