6S8P Battery Pack Drone BMS Engineering Case
Background & Initial Project Assessment
In October 2025, AYAATECH received a formal inquiry from a French customer requiring a specialized BMS for their heavy-payload drone. We requested the completion of a detailed project specification form. To ensure system reliability, we recommended a joint debugging phase with their flight control axis, which the customer initially declined as they believed it was unnecessary at the time.
Specialized Component & BOM Audits
The customer mandated the use of non-Chinese-manufactured semiconductors and IC components. Furthermore, the design was required to utilize components with high local availability in France to ensure long-term maintenance ease.
Technical Support & Schematic Verification
After several months of engineering development, AYAATECH provided full drawing sets and laboratory test reports.
Prototype Test Results & Flight Incident
On April 9, 2025, prototype samples were delivered to the customer for assembly testing. Following four months of integration, the customer reported that the drone suffered a mid-flight incident and crashed.
Forensic Analysis & Circuit Redesign
Post-incident analysis revealed that the drone's specific application and flying axle power requirements created inductive transients that were not fully disclosed during the initial inquiry. The original BMS lacked a hardware pre-discharge circuit to handle these specific back-EMF surges.
Current Testing & Final Certification
We are currently collaborating closely with the customer to conduct rigorous laboratory testing, ensuring full compliance with IEC 62133 and UN38.3 international safety standards.