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Power bank wholesale supplier checklist for B2B buyers

Searching for a power bank wholesale supplier China usually means you need repeatable SKUs—not a one-time retail deal. Use this checklist before you commit.

1. Capacity claims

Ask for capacity in Wh as well as mAh. Wh is clearer for travel rules and honest comparisons. Treat marketing-only mAh figures with caution until you see a datasheet for the exact SKU.

2. Ports and charging behavior

Confirm input/output ports (USB-C PD, USB-A, MagSafe-style magnetic options if relevant) and whether the listing matches the unit you will receive in bulk.

3. Packaging & labeling

Retail-ready vs bulk carton, language on inserts, and whether private-label sleeves are feasible. OEM details are confirmed case by case.

4. Samples before volume

For new buyers, samples (or a small pilot carton) reduce mismatch risk. Agree what “pass” looks like before production packing.

5. Shipping & compliance

Power banks are often treated as lithium goods. Confirm shipping mode with your forwarder; we align documentation to the agreed method after quote.

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