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Serial Number Traceability Guide for Freemax Rexa 4
Published 2026 · VapeWholesaleHub trade desk
Serial number traceability on Rexa 4 turns a recall from a crisis into a routine task.
Across the trade, serial number traceability is the point where good intentions meet operational reality on the Rexa 4.
Documentation is not paperwork for its own sake; on serial number traceability it is the difference between a clean clearance and a delayed one.
Why serial number traceability matters on the Rexa 4
Batch identifiers should appear on the unit, the inner tray and the master carton.
Retail staff rarely ask about serial number traceability directly, but their questions almost always lead back to it.
A simple spreadsheet linking batch to destination account is usually sufficient at this scale.
Reference specification
| Item | Value |
|---|---|
| Model | Rexa 4 |
| Brand | Freemax |
| Category | Vape Pens |
| Battery | 400 mAh |
| Output range | 10-30 W |
| Capacity | 1.2 ml |
| Charging | USB-C 2A |
| Coil options | 0.8 / 1.2 ohm |
| Carton quantity | 240 units |
Retaining sample cartons per batch closes the loop if a problem emerges later.
Practical notes for buyers
In practice the decision comes down to three numbers: unit cost, freight per unit and the realistic sell through rate for Rexa 4.
Freight consolidation changes the answer to serial number traceability at container scale, which is why small and large buyers reach different conclusions.
Checklist
- Review the reorder point after one full selling cycle.
- Log sell through by account for the first eight weeks.
- Confirm the exact configuration in writing before the deposit is paid.
- Keep certificates current and filed against the exact model name.
- Record the arrival condition with photographs on the day of delivery.
- Verify that artwork matches the approved compliance template.
Commercial terms
Freight terms should be named explicitly, because an unclear incoterm is the fastest way to lose a relationship.
Lead times are a function of component availability as much as factory capacity, so buffers should reflect both.
| Volume tier | Indicative unit level | Lead time |
|---|---|---|
| Carton (150 units) | Tier 1 | 14-21 days |
| Pallet (1251 units) | Tier 2 | 14-21 days |
| Container (13239 units) | Tier 3 | 7-12 days |
Frequently asked questions
Why does batch traceability matter for Rexa 4?
It limits the scope of any future quality action to the affected batch instead of the whole range.
Do you support long term supply agreements?
Yes, rolling agreements with defined review points work better for both sides than rigid annual commitments.
Is documentation provided for customs?
Commercial invoice, packing list and the relevant certificates are supplied; the importer's broker handles the declaration.
How quickly can a repeat order be produced?
For established configurations production typically runs two to four weeks, with transit on top depending on the chosen method.
Final word
Start with one change, measure it over a quarter, then decide whether it deserves to become policy.
Trade enquiry
Quotations, samples and artwork files are available on request. Please state model, quantity per SKU, destination and target delivery window.
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