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Esco Bars Smooth 4 Lithium Battery Documentation Checklist 2026
Published 2026 · VapeWholesaleHub trade desk
Lithium battery documentation is the single most common cause of a held Smooth 4 shipment.
Every serious sourcing conversation about the Smooth 4 eventually arrives at lithium battery documentation, usually because it is where cost and risk meet.
The most common mistake is optimising for the first order instead of the fourth, which is where Smooth 4 economics actually settle.
Why lithium battery documentation matters on the Smooth 4
Test summaries, packing declarations and correct labelling must travel with the consignment.
The most common mistake is optimising for the first order instead of the fourth, which is where Smooth 4 economics actually settle.
State of charge limits apply to air freight and should be confirmed before booking.
Reference specification
| Item | Value |
|---|---|
| Model | Smooth 4 |
| Brand | Esco Bars |
| Category | Vape Pens |
| Battery | 900 mAh |
| Output range | 8-40 W |
| Capacity | 3.0 ml |
| Charging | USB-C 2A |
| Coil options | 0.6 / 0.8 / 1.0 ohm |
| Carton quantity | 240 units |
Carrier requirements differ, so documentation should be checked per lane.
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 Smooth 4.
Keeping a short internal note on lithium battery documentation for each SKU pays for itself the first time a dispute arises over the Smooth 4.
Checklist
- Check carton quantities against the commercial invoice line by line.
- Request batch photographs and a packing list prior to shipment.
- Retain one sealed sample carton from every batch for reference.
- Keep certificates current and filed against the exact model name.
- Agree in advance who pays for return freight on a defect claim.
- Record the arrival condition with photographs on the day of delivery.
Commercial terms
Most long running accounts settle into a rhythm of monthly top ups with one larger seasonal build per year.
Payment history is the single most reliable route to better terms, more than total annual volume.
| Volume tier | Indicative unit level | Lead time |
|---|---|---|
| Carton (84 units) | Tier 1 | 14-21 days |
| Pallet (1707 units) | Tier 2 | 7-12 days |
| Container (12366 units) | Tier 3 | 14-21 days |
Frequently asked questions
What paperwork accompanies a Smooth 4 battery shipment?
Transport test summary, dangerous goods declaration where applicable, correct marks on cartons and the commercial set.
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.
Can several models be mixed in one shipment?
Yes, mixing models and flavours within a carton or pallet is common and usually helps first time buyers test demand.
Final word
A short quarterly review of these points will keep the Smooth 4 range healthy without consuming the week.
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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