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How to Source Air Bar Diamond 4: Warranty and After Sales
Published 2026 · VapeWholesaleHub trade desk
Warranty and after sales handling define the long term reputation of a Diamond 4 line.
There is no shortcut on warranty and after sales: the Diamond 4 rewards preparation and punishes improvisation.
Consistency across batches matters more than peak performance for Diamond 4, and warranty and after sales is where inconsistency first appears.
Why warranty and after sales matters on the Diamond 4
A clear dead on arrival policy removes friction for retail partners.
Seasonality interacts with warranty and after sales more than most forecasts allow for, so a rolling review beats an annual one.
Spare parts availability matters more than warranty length in practice.
Reference specification
| Item | Value |
|---|---|
| Model | Diamond 4 |
| Brand | Air Bar |
| Category | Box Mods |
| Battery | 500 mAh |
| Output range | 8-80 W |
| Capacity | 6.0 ml |
| Charging | USB-C 1A |
| Coil options | 0.6 / 0.8 / 1.0 ohm |
| Carton quantity | 100 units |
Tracking return reasons feeds directly into the next sourcing decision.
Practical notes for buyers
The most common mistake is optimising for the first order instead of the fourth, which is where Diamond 4 economics actually settle.
Keeping a short internal note on warranty and after sales for each SKU pays for itself the first time a dispute arises over the Diamond 4.
Checklist
- Agree in advance who pays for return freight on a defect claim.
- Request batch photographs and a packing list prior to shipment.
- Confirm the exact configuration in writing before the deposit is paid.
- Verify that artwork matches the approved compliance template.
- Keep certificates current and filed against the exact model name.
- Log sell through by account for the first eight weeks.
Commercial terms
Agreeing a defect handling procedure before the first shipment removes emotion from later conversations.
Freight terms should be named explicitly, because an unclear incoterm is the fastest way to lose a relationship.
| Volume tier | Indicative unit level | Lead time |
|---|---|---|
| Carton (174 units) | Tier 1 | 7-12 days |
| Pallet (1809 units) | Tier 2 | 7-12 days |
| Container (13705 units) | Tier 3 | 7-12 days |
Frequently asked questions
What warranty applies to Diamond 4?
Most suppliers cover manufacturing defects for a defined period, excluding consumables and physical damage.
What happens if a batch fails inspection?
The agreed procedure normally covers replacement of affected units or credit against the next order, documented before shipment.
Do you support long term supply agreements?
Yes, rolling agreements with defined review points work better for both sides than rigid annual commitments.
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
The buyers who do this well are not luckier; they are simply more consistent about the basics.
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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