OEM Power Bank Manufacturers in China
1 resources tagged with "Oem Power Bank"
OEM and white-label power bank sourcing is dominated by Shenzhen-area factories, where the deciding specs are cell quality, certification, and air-freight compliance. Lithium cells must pass UN 38.3 transport testing before they can ship by air, and finished units typically need CE/FCC plus UL or IEC 62133 for the cell. The classic pitfall is inflated mAh ratings — a '20000mAh' bank with low-grade cells may deliver well under its rated capacity, which is exactly what incoming inspection should catch.
When sourcing power banks, lock down the cell supplier and demand the UN 38.3 test summary before booking air freight; without it your shipment can be rejected at origin. Verify real capacity by discharge test on samples, not the printed label.
Guides (1)
FAQ
Do power banks need UN 38.3 to ship by air?
Yes. Lithium cells and the assembled power bank must pass UN 38.3 transport testing for air shipment, and forwarders will ask for the test summary. Missing UN 38.3 is one of the most common reasons a lithium shipment gets held at origin.
How do I verify a power bank's real capacity?
Run a discharge test on samples and compare delivered watt-hours to the rated mAh — overstated capacity from cheap cells is common. Pair this with cell-brand verification, since the cell is the part most often downgraded to cut cost.
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