The Sourcing and Quality Practitioners Behind Battery Procure

Cobalt & Current is the shared byline of the sourcing and quality professionals behind Battery Procure. Between us we have run cell sourcing programs, pack assembly audits, BMS development reviews, end-of-line test validation, and dangerous goods documentation for OEM programs spanning consumer, industrial, medical, and light mobility products. Our backgrounds sit on both sides of the buyer and supplier table: supplier quality engineering, commodity management, manufacturing engineering, and import and export compliance for lithium-ion programs sourced from Asia, North America, and Europe.

Battery Procure documents custom lithium-ion pack procurement in the order buyers actually perform the work. The library begins with Pack Requirement Definition, covering electrical performance requirements, cell chemistry and form factor selection, BMS functionality and communication requirements, enclosure, IP rating and environmental requirements, and pack specification documentation. It continues through Supply Landscape & Sourcing Models, Supplier Qualification & Factory Audits, Cost Drivers & Landed-Cost Modeling, Commercial Terms, Negotiation & Warranty, Certification & Regulatory Compliance, Production Readiness & Quality Management, and Logistics, Dangerous Goods & Customs. Readers are US OEM engineering and supply chain teams working through requirement definition, supplier qualification, RFQ evaluation, landed-cost modeling, compliance documentation, and production-ready supply terms.

Our method is field-based and comparative. We spend time on factory floors watching tab welding, BMS firmware flashing, and end-of-line test stations, and we read QMS documentation, calibration records, and cell traceability data rather than accepting the summary claims in a quotation. We compare how the same process is executed across manufacturing regions, and we track how standards such as UN 38.3, UL 2054, UL 62133, and IEC 62133 are applied in practice by test houses, certification bodies, and carriers. Where a figure would decay within weeks, including cell pricing, spot freight rates, and tariff lines, we describe the underlying cost structure and the model inputs instead, so the guidance stays usable across sourcing cycles. Every checklist, template, and scorecard published here comes from work we have done with live suppliers, and pages are revised as standards, carrier requirements, and audit expectations change. Where a topic turns on legal interpretation or contract drafting, the articles frame the commercial issues and identify where qualified counsel should be involved.

The purpose is straightforward: to help US OEM buyers make better-informed sourcing decisions, wherever in the world they choose to source. That means clearer requirement packages, sharper supplier qualification, more defensible bid evaluation, more accurate landed-cost modeling, and supply terms that hold up once volume begins. We write for the engineers and buyers doing that work, and we keep the material at the level of detail those decisions actually require.