State rated capacity
20,000 mAh is a typical wholesale rating. Confirm how capacity is labelled and the allowed deviation from that figure.
08 / 3C Digital · Power
Power Banks
Specify rated capacity, USB-C two-way charge, output ports, cell type and air-transport evidence. WSD Pack coordinates wholesale lots for overseas B2B buyers.
What the lot must do
Capacity is only useful with the safety record.
Rated mAh, USB-C power, port layout, cell chemistry and air-transport testing should sit in the same brief. A cheap figure without those fields is not a comparable offer.
Name the charge path
USB-C two-way fast charge at 22.5 W, plus any additional USB-A output, should be explicit.
Keep air-transport in view
Lithium-ion polymer cells for ocean or air movement need the agreed safety tests named before booking freight.
Pack twenty as a working unit
Twenty banks per inner box, then five-ply export cartons, keep receiving and freight counting simple.
Interactive sourcing brief
Define the lot in four passes.
Move through the decision fields. The final enquiry can begin with the details you already know.
01
Open a power banks enquiry
What must it charge?
Begin with rated capacity and port layout.
- Rated capacity (for example 20,000 mAh)
- USB-C two-way charge
- Additional USB-A output
- Allowed capacity deviation
What evidence is required?
Cell type and transport tests should be named, not assumed.
- Lithium-ion polymer cells
- Air-transport safety test
- Required marks or reports
- Warranty period
How is it packed for sale?
Retail carton, short cable and labelling affect onward wholesale sale.
- Retail carton contents
- Cable packed or not
- Label language
- Neutral or private-label mark
How should the lot move?
Inner-box count, lithium packing rules, volume and destination belong together.
- Units per inner box (for example 20)
- Export carton and pallet
- Order quantity
- Destination port, ocean or air
Sourcing routes
Choose the route before the SKU.
These are sourcing directions to evaluate, not a promise of fixed stock. The quotation confirms construction, pack and availability.
| Route | Best starting point | Important checks | Useful buyer input |
|---|---|---|---|
| 20,000 mAh USB-C 22.5 W | General wholesale power lots | Rated capacity, ports, cell type, air-transport test, inner-box count | Sealed bank with short cable |
| Lower or higher capacity | Range fill after the 20,000 mAh reference is proven | Pack change, freight class, minimum volume | Quote only against an agreed reference |
Wholesale lots, counted and sealedSerial · carton · freight
From sealed carton to named port
Pack the electronics for the freight they will meet.
3C lots are dense, serialised cargo. Inner-box count, export carton, lithium rules where they apply, and pallet stability should be agreed alongside the product specification.
For CIF orders, the quotation defines the destination port and included freight and insurance scope. Import clearance, duties and post-arrival handling remain with the buyer unless separately agreed.
Understand CIF deliveryBuyer questions
Before requesting a quote.
Send rated capacity, port layout and whether air freight is required.
A 20,000 mAh brief with inner-box count and destination is a useful start.
Enquire about this line