Two wholesale prices arrived for the same charger, and the difference was explained three weeks later: one included the certification work and the other had priced it as an option. Nothing in either quotation was wrong. The two numbers simply described different scopes, and the comparison had been made on the first line of each document.
Charger wholesale price: the cost lines behind the number
Five lines: the bill of materials, the process and test time, the fixed charges, the delivered costs and the margin with its payment structure.
Every wholesale price is a total of those five, and a supplier that quotes the lines separately is not being more expensive, it is being more legible. The legibility is what allows two offers to be compared and what makes a later change comprehensible.
The lines also behave differently: materials and process scale with quantity, fixed charges do not, delivered costs follow the delivery term, and the margin follows the commercial relationship rather than the engineering.
Line 1: the bill of materials
The largest line, and the one that changes quietly.
Switching devices, magnetic components, capacitors, the connector, the cable, the enclosure and the packaging materials all sit here. Component substitution is the usual reason a price moves between one order and the next, which is why the approved list belongs in the specification rather than in the factory’s internal paperwork. Where a part reaches end of life, the replacement is assessed and the effect on both the price and the tested construction is recorded.
Line 2: the process and test time
Assembly time, test time and the aging or burn-in period.
This line grows with the number of test positions, the duration of any aging step and the manual content of the assembly. It is also the line that reflects quality decisions: a longer burn-in, an additional inspection station or a stricter limit each add time per unit. A quotation that is low on this line may be legitimate for a simple product and a warning for a complex one.
Line 3: the fixed charges
Tooling, packaging setup, certification work and documentation.
These are paid once and recovered across the order, which is why the per-unit effect falls as the quantity rises. They are also the lines most often left out of a comparison: a quotation that includes tooling and one that prices it separately can differ by more than the unit price suggests. For a platform programme the enclosure tooling disappears and the packaging setup becomes the largest fixed item.
Line 4: the delivered costs
Freight, insurance and duty, following the delivery term.
The same goods carry different total costs depending on where responsibility transfers. Carton dimensions decide the pallet pattern and the container load, so the packaging choice moves this line; the declared value drives the duty; and the volume of the order decides whether a full container or a consolidated shipment is used. Two prices quoted on different terms are two different offers.
Line 5: the margin and the payment structure
Where the margin sits says something about the relationship.
A supplier that carries the certification file, the tooling and the capacity risk has a reason for its margin, while one that carries none of the three is charging for administration. The payment structure belongs here as well: a deposit against tooling and the balance against the approved shipment is a different commercial proposition from full prepayment, and the difference is a cost of capital that belongs in the comparison.
| Line | What it contains | Moves with | Common omission |
|---|---|---|---|
| Bill of materials | Components, cable, enclosure, materials | Quantity and substitutions | The approved component list |
| Process and test time | Assembly, test positions, aging | Quality decisions and volume | The burn-in duration |
| Fixed charges | Tooling, packaging setup, certification | Configuration, not volume | Certification priced separately |
| Delivered costs | Freight, insurance, duty | Carton size, value, term | The Incoterm |
| Margin and terms | Margin and payment structure | Risk carried and capital | The payment structure |
What moves the price after the quotation
Four changes explain most of the drift.
A language version added to the packaging, which adds a print setup; a quantity reduced, which spreads the fixed charges over fewer units; a component substituted for supply reasons, which may change both the material cost and the test scope; and a delivery term changed late, which moves freight and risk. Each is legitimate, and each is cheaper when it is priced before it happens rather than after.
How to compare two wholesale prices
Align five items before reading the numbers.
The configuration, the packaging version, the quantity, the delivery term and the fixed charges included. Once those five match, the comparison is arithmetic and the remaining difference is the margin and the payment structure, which is a commercial conversation rather than a technical one. Where one supplier cannot align the five, the quotation is an indication rather than a price.
FAQ
Why is the second order sometimes more expensive than the first?
Commonly because a fixed charge was absorbed into the first order, a component changed with supply, or the quantity fell so that the same fixed costs spread over fewer units. Asking for the five lines separately makes the reason visible. Ask for the five lines separately, because a fixed charge absorbed into the first order, a component change or a smaller quantity all produce the same visible effect.
Should the packaging be quoted separately?
Yes, with the number of language versions stated, because the print setup is a fixed charge per version. Packaging is where two apparently similar quotations most often differ. State the number of language versions with the quotation, because the print setup is a fixed charge per version and packaging is where two similar quotations most often differ from each other.
Does a larger order always reduce the unit price?
It reduces the per-unit effect of the fixed charges and can improve the material price at reel or moulding thresholds. It cannot reduce the delivered costs, and it does not change the certification work once that is done. A larger order reduces the per-unit effect of the fixed charges and can improve the material price at reel or moulding thresholds, but it does not change the certification work.
What is the fastest way to reduce the wholesale price without weakening the product?
Concentrate the range: fewer plug variants, one packaging version on the first order and a forecast that holds. Each of those reduces a fixed charge or a print setup without touching the construction or the test programme. Concentrate the range: fewer plug variants, one packaging version on the first order and a forecast that holds, because each reduces a fixed charge without touching the construction.
Next step
Send the configuration, the packaging direction, the quantity and the delivery term to Wecent Group through the contact page. The reply returns the five lines separately, states which are fixed and which scale, and names the changes that would move the price. Related reading: OEM and ODM charger manufacturing, charger manufacturing services and the factory floor. External references: ICC Incoterms rules, International Trade Centre Trade Map, IEC standards, EU CE marking rules, UL standards and certification and Intertek testing services.
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