Can You Take a Power Bank on a Plane? Wh Limits, CCC and UN 38.3 Explained

Business travelers and tourists have all been there: stopped at security, "how many mAh is your power bank?" Here are the rules, plainly — whether you carry a power bank or sell them.

Bottom line: it's about Wh, not mAh

Whether your power bank flies depends on its rated energy in Wh:

• ≤ 100Wh: carry-on, generally fine
• 100-160Wh: airline approval required (usually max 2 units)
• > 160Wh: banned entirely

The math: Wh = mAh × V ÷ 1000. A typical 20000mAh, 3.7V power bank = 74Wh — fine. Those "30000mAh monsters" come out to 111Wh and need airline approval.

One iron rule everywhere: power banks go in carry-on only, never checked luggage. A fire in the cargo hold can't be seen or reached — every civil aviation authority agrees on this.

Why power banks are treated so strictly

Lithium batteries can go into thermal runaway during transport — crushing or shorting can start a fire that's hard to extinguish. That's why all lithium battery transport falls under UN 38.3 (the UN Manual of Tests and Criteria, section 38.3: altitude, thermal, vibration, shock, short circuit, crush, overcharge, forced discharge — 8 test groups).

A power bank must pass UN 38.3 before it can legally fly, ride the train, or ship by sea.

The 2023 rule: CCC for power banks

Less known: since August 2023, power banks are in China's CCC compulsory certification catalog (code 0914, per SAMR's 2023-revised catalog description). Definition: under 18kg, containing lithium-ion cells rated above 600mAh, portable power supply — power banks, portable storage, camping power stations all count.

What it means:

• Selling power banks: domestic sales in China require a CCC certificate and the CCC mark on the product
• Carrying power banks: Chinese airports check for the CCC mark — power banks without it get rejected at boarding (enforced nationwide since 2025)

So when you saw the news "power banks without CCC banned from flights" — that's the catalog rule in action.

One-minute self-check before flying

Look at your power bank:

1. Does it have the CCC mark? No mark — leave it home, it'll get confiscated at the gate.
2. What's the printed Wh rating? ≤100Wh is fine; no Wh printed (mAh-only, no-name products) will likely get rejected.
3. Any damage or swelling? Damaged lithium batteries are banned outright.
4. Carry-on only — don't put it in checked luggage.

For power bank sellers

To sell legally and keep your customers flying, three things:

1. CCC certification (mandatory since 2023, catalog code 0914)
2. UN 38.3 testing (required for transport — also the prerequisite for air travel)
3. GB 31241 battery safety (China's mandatory standard for portable lithium batteries, usually done together with CCC type testing)

Miss one, and a customer getting stopped at the airport turns into a one-star review.

Need the CCC catalog definition for power banks, UN 38.3 test items, or GB 31241 clause text? Sign up at StdFlow (stdflow.com) and ask an AI agent — every answer comes with citations.