Introduction
You're rushing to the gate, boarding pass on your phone screen, and your battery is at 12%. You've got your power bank — but is it allowed in your carry-on? Will TSA pull you aside?
If you've ever been confused about the rules for bringing portable chargers and power banks on planes, you're not alone. The TSA rules can feel complicated, but they're actually pretty simple once you understand the basics. And once you understand them, you'll know exactly what to look for when buying a travel charger.
This guide covers everything: the current TSA rules (updated for 2026), what counts as "TSA approved," the math behind watt-hour limits, and the best TSA-approved portable chargers you can buy — including the world's thinnest option.
The Short Answer: Yes, Most Power Banks Are Allowed
The good news: the overwhelming majority of portable chargers sold today are perfectly legal to bring on a plane.
Here's the quick version of the rules:
- ✅ Carry-on bag: Yes, allowed (with capacity limits)
- ❌ Checked bag: No — power banks are NOT allowed in checked luggage
- ✅ Personal item: Yes, allowed (same rules as carry-on)
The key restriction is capacity, measured in watt-hours (Wh).
TSA Rules for Power Banks in 2026
The TSA follows the FAA's lithium battery regulations for domestic flights. International flights may have additional or slightly different rules, but the TSA/FAA rules are the baseline.
Current Limits:
| Battery Capacity | Carry-On? | Checked Bag? |
|---|---|---|
| Under 100Wh | ✅ Yes, no limit | ❌ No |
| 100–160Wh | ✅ Yes, with airline approval (max 2) | ❌ No |
| Over 160Wh | ❌ No | ❌ No |
| Any size loose lithium battery | ✅ Carry-on only | ❌ No |
The Bottom Line for Most Travelers
If your power bank is rated in mAh (milliamp-hours) — which most are — here's how that converts:
| mAh Rating | Approximate Wh | TSA Status |
|---|---|---|
| 5,000 mAh | ~18.5 Wh | ✅ Allowed |
| 10,000 mAh | ~37 Wh | ✅ Allowed |
| 20,000 mAh | ~74 Wh | ✅ Allowed |
| 26,800 mAh | ~99 Wh | ✅ Allowed (barely) |
| 27,000+ mAh | 100+ Wh | ⚠️ Airline approval needed |
Formula: Wh = (mAh × voltage) ÷ 1000. Most power banks use 3.7V lithium cells, so: Wh ≈ mAh × 3.7 ÷ 1000.
Does My Power Bank Need TSA Approval?
No — there is no official "TSA certified" stamp or certification process. What people mean by "TSA approved" is simply: meets the FAA/TSA capacity limits so it's allowed through security without issues.
Any power bank under 100Wh is fully TSA-approved to bring on any domestic flight in the United States.
Carry-On vs. Checked Bag: Why the Difference?
You might wonder: why can't power banks go in checked bags?
Lithium batteries can overheat and, in rare cases, catch fire. In a carry-on, the cabin crew can respond to a battery fire. In the cargo hold, a fire from a battery in checked luggage is far more dangerous and harder to detect. For this reason, the FAA requires all lithium batteries to travel in the cabin — either in the device or as a carry-on loose battery.
This applies to:
- Power banks / portable chargers
- External battery packs
- Spare lithium batteries
- Camera batteries
How to Pack Your Power Bank for Travel
Here are a few tips to make it through TSA faster:
- Keep it accessible. TSA may ask you to remove electronics from your bag. Keep your power bank easy to grab.
- Don't put it in checked luggage. This is a hard rule — it will be removed and you could miss your flight.
- Leave it in your carry-on or personal item. It doesn't need to come out for the X-ray at most airports (though TSA may ask).
- Check international rules. Flying to the EU, UK, Asia, or other regions? Rules are similar but not identical. Most airlines follow the same 100Wh limit.
Best TSA-Approved Portable Chargers in 2026
Now that you know the rules, here are the best options for travelers:
1. Clutch Pro (5,000mAh) — Best for Ultra-Light Travel
TSA Wh Rating: ~18.5 Wh (well within limits)
Weight: 3.7 oz
Thickness: 0.32" (credit-card thin)
Built-in Cable: Yes (USB-C or Lightning)
Magnetic: Yes (MagSafe compatible)
The Clutch Pro is the world's thinnest portable charger, and it's specifically designed for travelers who don't want to deal with extra cables or bulk. At just 0.32 inches thin and 3.7 ounces, it slips into any pocket, purse, or travel wallet without taking up space.
The built-in cable is what sets Clutch apart from every other option on this list. There's no separate cable to pack, no USB-A adapter to remember, no dangling cable when you're charging on the go. You plug in, and your phone charges — that's it.
For TSA purposes, at 5,000mAh (≈18.5Wh), you're deep in the "no problems ever" zone. TSA agents won't even look twice.
Best for: Travelers who want the smallest possible charger that still has real power. Commuters. People who charge their phone once during the day.
2. Anker 633 Magnetic Battery (10,000mAh)
TSA Wh Rating: ~37 Wh
Weight: 7.6 oz
Notable: MagSafe compatible, Wirecutter top pick for wireless charging
The Anker 633 is Wirecutter's top pick for magnetic wireless portable chargers. At 10,000mAh it has twice the capacity of the Clutch Pro, but at 7.6 oz it's also more than twice as heavy. It doesn't have a built-in cable — you'll need to pack a USB-C cable separately.
Best for: Travelers who want wireless charging and are fine with carrying more weight.
3. Anker Nano Power Bank (5K, MagGo, Slim)
TSA Wh Rating: ~18.5 Wh
Weight: ~4 oz
Notable: Slim profile, MagSafe compatible
Anker's slim 5K MagGo is Clutch's closest direct competitor. It's slim and magnetic but lacks the built-in cable that makes Clutch uniquely convenient for travel. Price: $59.99 — slightly more than Clutch Pro.
4. Belkin BoostCharge Power Bank (5K)
TSA Wh Rating: ~18.5 Wh
Notable: Belkin brand reliability, widely available
Belkin's 5K option is a solid performer with wide retail availability. Heavier than Clutch and no built-in cable, but well-reviewed.
What Makes the Clutch Pro the Best Choice for Travelers?
We're biased — but the numbers back us up.
When TSA says "power banks go in your carry-on," the ideal response is: "It's already in my pocket." That's the Clutch advantage.
Here's what other power banks can't offer simultaneously:
- Credit-card thin: 0.32" — slides into any pocket, wallet, or passport holder
- Built-in cable: No separate cable needed, ever
- Magnetic attachment: Sticks to your iPhone while charging — use your phone hands-free
- TSA safe: 5,000mAh (~18.5Wh) — zero questions from TSA agents
- Enough power: One full charge for most iPhones — exactly what you need for a day of travel
At 3.7 oz, the Clutch Pro weighs less than your wallet with cash in it.
International Travel: Do TSA Rules Apply?
TSA rules apply at US airports. For international travel, the rules are broadly similar:
- European Union / UK: Same 100Wh limit for carry-on; same prohibition on checked bags
- Australia (CASA): 100Wh limit without approval; 100–160Wh with airline approval
- Japan: MLIT follows the same 160Wh maximum
- China: CAAC limits to 100Wh; some airlines require 20,000mAh to be declared
Pro tip: A 5,000mAh charger like the Clutch Pro (~18.5Wh) is universally accepted on every airline worldwide. If you travel internationally frequently, keeping your charger under 10,000mAh (~37Wh) means you'll never have to think about battery rules again.
FAQ: Power Banks on Planes
Can I bring 2 power banks on a plane?
Yes. The TSA doesn't limit the number of power banks under 100Wh. You can bring as many as you like in your carry-on.
Can I use my power bank on the plane?
Most airlines allow you to use your power bank during the flight. Some airlines restrict use during takeoff and landing. Check your airline's specific policy. Generally, charging your phone from a power bank in your seat is fine.
What if my power bank isn't marked with Wh?
You can calculate it: Wh = (mAh × 3.7V) ÷ 1000. Alternatively, if your power bank is marketed as under 20,000mAh, it's almost certainly under 100Wh.
Will TSA make me take out my power bank at security?
At standard security lanes, large electronics (laptops, tablets) must be removed. Power banks usually don't need to be removed, but TSA agents can request it. At TSA PreCheck lanes, you typically don't need to remove anything.
Can airlines take away my power bank?
Yes — if your power bank exceeds 100Wh and you don't have airline approval, it may be confiscated at the gate or during boarding. This is rare for standard power banks under 20,000mAh.
Is the Clutch Charger TSA approved?
Yes. The Clutch Pro (5,000mAh) is approximately 18.5 watt-hours — well within the 100Wh TSA limit. It's allowed on any flight in the US and internationally.
The Bottom Line
Bringing a power bank on a plane is easy and legal as long as you follow three rules:
- Keep it in your carry-on (never checked baggage)
- Stay under 100Wh (any power bank under ~27,000mAh is fine)
- Know that "TSA approved" just means meeting the capacity limit — there's no certification sticker needed
For travelers who want the ultimate TSA-friendly charger, the Clutch Pro offers something no other power bank can: credit-card thickness, a built-in cable, magnetic attachment, and enough charge to get you through the day — all in a package that slides into your pocket and never comes out until you need it.
Last updated: February 2026. TSA rules may change; check tsa.gov for the most current regulations.