Anker Laptop Power Bank, 25,000mAh Travel Essential with 165W Total Output

Why it's worth it

This is a 25,000mAh brick with three USB-C ports, retractable cables built into the body, and enough output to charge a 14-inch laptop at full speed. It's the rare bank that covers a laptop, a phone and a tablet at once and still clears carry-on rules.

Three USB-C ports mean you stop rationing power. Anker rates each one at up to 100W, so your laptop gets a real charge instead of a slow hold. With the two built-in cables plus the USB-A and spare USB-C ports, you can run four devices at once. That's the difference between charging your laptop now and charging your kid's tablet later, and doing both while you wait.

The built-in cables are the quiet reason to buy it. One extends to about 2.3 feet and is rated for 20,000 retractions. The shorter one doubles as a carrying strap and is rated past 20,000 bends. So the cable you need is already attached to the thing you need it for. If you've ever emptied a bag onto an airport floor hunting for a USB-C cord, you know what that's worth.

From our review of 10 travel power banks, by Ben Carter, Tech Editor

What we like

• +Three USB-C ports mean you stop rationing power
• +The built-in cables are the quiet reason to buy it
• +25,000mAh is roughly as much as you're allowed to fly with
• +It refills fast enough to matter on a hotel night

What to know

• –It's heavy for something you carry every day
• –Those 100W ports share one power budget
• –You need a serious wall charger to see the fast numbers