Power Bank Factory Audit Checklist
Verify whether the real production site can repeat an approved power bank SKU. Trace controlled materials, assembly, testing, aging, traceability, release and change control using one actual model—not showroom claims.
Factory Audit · 8 Critical Controls
Audit one real production SKU end-to-end. For each area record Check · Evidence · Result · Open Action and use Pass / Concern / Fail / Not Verified.
01 · Factory Identity & Process
Legal site · actual production role · relevant lines · outsourcing · process flow.
02 · Incoming Materials & Cell Control
Cells · PCBAs · cables · housings · IQC · quarantine · cell model · lot/date code · storage.
03 · PCBA, Firmware & Charging
Approved board/IC · firmware · PD/PPS · programming · fixtures · protocol output.
04 · Assembly & Work Instructions
Assembly · welding/soldering · cable routing · fastening · first-piece/IPQC · controlled instructions.
Production Flow — follow receiving, assembly, test, aging, packing and release on one real SKU.
Quality Evidence — verify records, test criteria, status control and traceability instead of relying on claims.
05 · Functional Test & Aging
Input/output · charging protocols · cables · wireless/display · protection · aging · pass/fail data.
06 · Calibration & Test Equipment
Meters · loads · analyzers · torque tools · fixtures · calibration or verification status.
07 · Traceability & Final Release
Batch code · cell/PCBA link · BOM/firmware revision · final inspection · packaging revision · release sign-off.
08 · CAPA, Change Control & Buyer Approval
Segregation · root cause · rework · corrective action · ECN · component/process changes · buyer approval.
Audit Rule
No evidence = Not Verified. A critical traceability, testing or change-control gap should remain open until evidence or corrective action closes it.
Minimum Evidence to Request
Material: approved supplier list · cell specification · IQC · lot traceability · approved alternates.
Production: work instructions · first-piece/IPQC · functional test · aging · equipment status.
Release: golden sample · BOM/firmware revision · final inspection · batch release · ECN/CAPA.
Close the Audit with a Release Decision
Approved — no unresolved critical risk; improvement items have owners and deadlines.
Conditional — proceed only after defined evidence, corrective action or focused re-audit closes the gaps.
Not Approved — critical production, traceability or change-control risk remains unresolved or unverified.
Factory Approval Signals & Red Flags
Good Signals
✓ Exact cell and PCBA states identified.
✓ Incoming lots have status and traceability.
✓ Test criteria are written.
✓ Samples, specs and production revisions are linked.
✓ Nonconforming material is segregated.
✓ Changes trigger review and approval.
Red Flags
× “A-grade” or “same as sample” replaces exact identity.
× No lot traceability for cells or critical parts.
× Test equipment has no controlled status.
× Failed/reworked material is not segregated.
× Revisions live only in chat messages.
× Silent substitutions are routine.
Next Buyer Tools: Supplier Scorecard → · Product Specification → · IQC → · CAPA / 8D →
Power Bank Factory Audit FAQ
Can a remote factory audit replace an on-site visit?
It can verify documents, live processes and selected traceability points, but some risks are easier to confirm physically. Use remote review for qualification and gap finding, then decide whether project risk requires an on-site audit.
What matters most in a power bank factory audit?
Cell/PACK identity, revision control, testing, traceability and change control are especially important because they determine whether the approved SKU can be repeated consistently.
Are ISO certificates enough to approve a supplier?
No. Buyers still need evidence for the actual product process, including materials, testing, traceability, release and change management.
How should unverified items be recorded?
Mark them Not Verified rather than Pass, and assign the required evidence, owner and deadline.
How does this connect to the Supplier Evaluation Scorecard?
The scorecard compares suppliers at a higher level. The factory audit provides deeper evidence for manufacturing, cell/PACK, quality, traceability and change-control scores.