Your BMS Firmware Isn't Frozen Just Because the Spec Is
The BMS model number won't tell you what a pack does. Control the firmware revision instead: registers, change approvals, per-serial records, and archives.
Supplier Qualification & Audit
Screening and auditing custom Li-ion pack suppliers for traceability, process control, firmware governance, and production-approval readiness.
The BMS Records That Decide Your Robot Battery Warranty Claim
Which BMS logs, cycle counters, firmware version records, and diagnostic exports to require in the contract so a robot battery warranty claim survives.
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.
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.
What the Cell Lot Code Reveals That Most Receiving Inspections Miss
The lot code printed on the cell can is the last surviving identifier after packaging is gone. Here is how to read it and what most receiving inspections miss.