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Can I Carry It? — verified carry-on guide

飛行機にPower Bankを持ち込める？

電子機器・バッテリー

要約結論
機内持込: ✓ 可能 受託手荷物: ✕ 不可

Yes — you can bring power bank on a plane in your carry-on luggage. ≤ 100 Wh: freely allowed.

  • · ≤ 100 Wh: freely allowed
  • · 100–160 Wh: airline approval needed, max 2
  • · > 160 Wh: banned
  • · Carry-on only — never checked
  • · China domestic flights (since Jun 28, 2025): bank must show a valid 3C/CCC mark; recalled models banned regardless
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🔋 Battery watt-hour calculator

Power banks show mAh, airlines limit Wh. Under 100 Wh flies free in carry-on; 100–160 Wh needs airline approval.

航空保安当局別の公式規定

Rules by security authority

United States — TSA

Carry-on

Yes

Yes, power banks up to 100 Wh are allowed in carry-on. Between 100–160 Wh you need airline approval (max two).

Checked bag

No

No. Power banks are spare lithium batteries and are never allowed in checked bags due to fire risk.

Rule conditions: ≤ 100 Wh: freely allowed100–160 Wh: airline approval needed, max 2> 160 Wh: bannedCarry-on only — never checkedChina domestic flights (since Jun 28, 2025): bank must show a valid 3C/CCC mark; recalled models banned regardless

Flying internationally? Security follows the country you depart from — the authority above applies at your departure airport. Customs at arrival is separate.

Power Bankのパッキング注意点

機内持ち込み手荷物: Yes, power banks up to 100 Wh are allowed in carry-on. Between 100–160 Wh you need airline approval (max two).

受託手荷物（預け荷物）: No. Power banks are spare lithium batteries and are never allowed in checked bags due to fire risk.

保安検査場での最終的な持ち込み可否判断は、現場の保安検査員に委ねられます。

よくある質問 (FAQ)

Frequently asked questions

Can you bring a Power Bank in a carry-on?

Yes, power banks up to 100 Wh are allowed in carry-on. Between 100–160 Wh you need airline approval (max two).

Can you pack a Power Bank in checked luggage?

No. Power banks are spare lithium batteries and are never allowed in checked bags due to fire risk.

Is a 20,000 mAh power bank allowed on a plane?

Yes. A 20,000 mAh bank at 3.7 V is 74 Wh, well under the 100 Wh carry-on limit. Pack it in your cabin bag, not checked luggage.

Where do I put a power bank on a plane — carry-on or checked?

Carry-on only. Spare lithium batteries, including power banks, are prohibited in checked baggage on US, Canadian, and most international flights.

Last verified:

Verified against official sources. Rules change — for high-stakes items, confirm with your airline and the screening authority. Our verification method →