TRHQ Top Pick
Editorial Research · not yet hands-on tested- 6.1 × 2.2 × 2 in
- 1.4 lb
- Airline fit not yet verified
Best for: Laptop-carrying travelers on long-haul flights
$109.99
$149.99 −27%
Travel Gear Lab
Best Travel Electronics and Power Gear
Batteries have flight rules, adapters have voltage rules, and trackers have privacy rules. We test travel electronics against airline and TSA requirements as well as everyday performance.
Top picks
Best travel electronics we've tested
Check Price
Best Value
Apple
Apple AirTag 4-Pack
- 1.26 × 1.26 × 0.31 in
- 0.02 lb
- Airline fit not yet verified
Best for: Every checked bag and carry-on on a connecting itinerary
$79
$99 −20%
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Comparison table
Scroll horizontally on mobile to see every measured spec.
| Product | TRHQ Score | Price | Dimensions | Weight | Airline Fit | Best For |
|---|---|---|---|---|---|---|
| Anker 737 Power Bank (PowerCore 24K) | 86/100 | $109.99 | 6.1 × 2.2 × 2 in | 1.4 lb | 25/25 | Laptop-carrying travelers on long-haul flights |
| Apple AirTag 4-Pack | 84/100 | $79 | 1.26 × 1.26 × 0.31 in | 0.02 lb | 25/25 | Every checked bag and carry-on on a connecting itinerary |
Buying guide
Watt-hours, not milliamp-hours
Airlines cap spare lithium batteries at 100 Wh in carry-on. A 24,000 mAh bank at 3.6 V is about 86 Wh — legal. A 30,000 mAh bank may not be.
Power banks never fly checked
Spare lithium batteries must travel in the cabin. Every time.
Airline compatibility
Personal item and carry-on limits vary by carrier and change without notice. Check any bag on this page against your airline before you book.
Open the Airline Bag Size CheckerFrequently asked questions
- Can I bring a power bank on a plane?
- Yes, in your carry-on, up to 100 Wh without airline approval. Never in checked baggage.
- Are Bluetooth trackers allowed in luggage?
- Yes. Major airlines now accept tracker data in delayed-baggage claims.