Anker 737 Power Bank (PowerCore 24K) 24000mAh

Anker 737 Power Bank (24,000mAh) — The Carry-On Power Hub for Long-Haul Travelers

The gist: A 24,000mAh portable charger that safely flies in carry-on luggage, charges a MacBook or iPhone at full speed, and handles multi-day trips without hunting for an airport outlet.

• Airline-legal capacity: 86.4Wh sits just under the 100Wh carry-on limit — you can bring this on any commercial flight without checking it.
• Laptop-grade output: Up to 140W via USB-C means it charges a MacBook Pro, iPad, or high-power laptop — not just phones.
• Three ports simultaneously: Two USB-C and one USB-A let you top up a phone, tablet, and earbuds at the same time during a layover.
• Smart display: Built-in LED screen shows remaining capacity so you always know how much charge is left before boarding.

StorageReview called it “a very useful tool to keep in your travel bag to keep devices running far from home,” praising its “three USB connections, solid build quality, and large battery.”

Best for: Travelers who work on a laptop during flights or multi-day trips and need reliable, high-wattage portable power. Skip it if: You only need to charge a phone — lighter, cheaper options exist for phone-only use. Runs ~$90–120 — check the current price before buying.