Silent Cell or Firmware Changes That Undo Your Pack Qualification
Which cell, weld, and firmware changes must trigger notice, what a supplier's change control procedure should contain, and what to requalify when it lands.
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An RFQ That Just Says IP67 Will Cost You a Second Round of Quotes
An RFQ that says only IP67 produces bids you can't compare. Here's the standard, specimen, quantity, and post-test function fields that fix it.
Where the Cost of Going From IP67 to IP68 Really Comes From
Sealed connectors, gasket labor, leak-test yield, retest NRE, and lost serviceability are the IP67 to IP68 cost drivers. Here is how to normalize two bids.
How a Supplier Quality Auditor Reads an IP Test Report Before Accepting It
Specimen identity, agreed test conditions, and accredited lab scope come first. Then production evidence: leak test records, torque control, and a teardown.
Five Years of Customs Records for Every Battery Pack You Import
What US importers of lithium-ion battery packs must keep after entry, how long, and what to produce when CBP sends a request for information.
Your RFQ Wording Can Let Suppliers Skip Cell Traceability
Traceability is a bid deliverable, not an assurance. Require bidders to attach a working traceability file to the quote to see who can actually produce one.
The Certification Papers a Lithium Battery Shipment Cannot Leave Without
A UN 38.3 test summary and a dangerous goods declaration only work if they describe the same battery. Here is how to keep the two documents in agreement.
Who holds the pack certificate when cells and assembly come from different suppliers?
In a split supply chain, cell reports, pack listings, and market approvals live with different parties. Here is what to put in the RFQ so nobody assumes.
Can Your UN 38.3 Test Report Prove Which Cell Lot Shipped in Your Battery Pack?
A UN 38.3 test report covers a cell model, not a shipment. How cell lot codes, work orders, and pack serials hold the compliance evidence chain together.
Your Battery Pack MOQ Is Locked Before the Pilot Build Ends
The pack MOQ is set in the PO, not the pilot docs. How sample, pilot, and production pricing bases hand off, and where the forecast becomes binding.