What Should You Ask in a BMS Firmware Version Control Audit?
A buyer-side checklist for auditing BMS firmware version control: the change log, the sealing station, the build traveler, and the serial-to-file chain.
Manufacturing Process & Quality System Audit
On-site and remote audit checklists covering process controls, incoming inspection, ISO 9001, and IATF 16949 applicability.
What a pack plant auditor checks that an ISO 9001 binder does not show
An ISO 9001 binder proves a system, not a line. Here is the weld pull-test, torque, and ESD station evidence I ask to see before a pack supplier is approved.
What a Pack Line Audit Should Check Beyond the Certificates
A pack line audit should trace one serial from cell issue to end-of-line test, not just admire the ISO 9001 wall. Here is what to pull when you visit.
Why a Pack Serial Number Alone Cannot Prove Cell Traceability
Pack serials identify the finished assembly, not the cells inside. Here is the assembly record trail buyers should demand during a supplier audit.