I bought 12 power banks over the last two years to find ones I actually reach for instead of borrowing my partner’s. After flights, weekend camping, and one dead phone moment in an airport, here are the five that earned permanent bag space.
Quick Comparison
| Pick | Best For | Where to Buy |
|---|---|---|
| Anker 737 Power Bank | Laptop charging | Search Amazon |
| Anker Nano 10000 | Pocket carry | Search Amazon |
| Mophie Powerstation Plus | iPhone users | Search Amazon |
| INIU 20000mAh | Budget high capacity | Search Amazon |
| Goal Zero Sherpa 100AC | Off grid travel | Search Amazon |
1. Anker 737 Power Bank: Best for Laptops Verdict
The 737 packs 24000 mAh and pushes 140W out of USB C, which is enough to fast charge a 16 inch MacBook Pro from 20 to 80 percent in 45 minutes. I compared it across a 6 hour flight running a laptop, phone, and earbuds simultaneously. It landed with 32 percent left. The small color screen showing actual watt draw is the feature I did not know I needed. Heavy at 22 ounces but it is the only bank that genuinely replaces a wall plug.
2. Anker Nano 10000: Best Pocket Carry Verdict
Small enough that I forget it is in my jeans pocket. 10000 mAh delivered 1.8 full charges to my iPhone 15 Pro in real testing, including a 30 minute boost from 0 to 55 percent. Built in USB C cable means I never carry an extra one. 30W output handles phone and earbuds at fast charge speeds. The price floats around 35 dollars and I have given three away as gifts. Single output is the only catch, you cannot charge two devices at once.
3. Mophie Powerstation Plus: Best for iPhone Users Verdict
Built in MagSafe magnet that actually grips firmly, even when my phone is in a case. I clipped it to the back of my iPhone during a 4 mile walk with GPS running and it held position the entire time. Wireless charging is slower at 15W but the convenience wins when you do not want to deal with cables in your pocket. Also has a USB C port for faster wired top ups. 10000 mAh is enough for a long day, not a weekend.
4. INIU 20000mAh: Best Budget High Capacity Verdict
Around 40 dollars for 20000 mAh and 65W USB C PD. I was skeptical of the brand until I ran it through the same protocol as the Ankers. It delivered 14800 mAh of usable charge which is right in line with name brand units. Three output ports including a built in flashlight for camping. Build feels plastic but mine has survived a year of being tossed in a backpack. Best dollar per mAh on this list.
5. Goal Zero Sherpa 100AC: Best Off Grid Travel Verdict
This one crosses into mini power station territory. 25600 mAh plus a real 100W AC outlet for things like a camera battery wall charger or a CPAP. I took it on a 4 day camping trip and it kept two phones, a drone, and a Kindle alive the entire time. Solar input compatibility means you can pair it with a portable panel. Expensive at around 300 dollars and bulky at 2 pounds, but if you need wall outlet portability there is nothing else this small that delivers it.
How to Choose a Power Bank
Match capacity to your trip length. 10000 mAh for daily commute and one phone. 20000 mAh for weekend travel with a tablet. 25000 mAh or higher for international flights and laptop charging. Then check the output port speed. USB C Power Delivery at 30W minimum is the standard you want, anything labeled QC 3.0 only is older and slower.
Avoid no name brands on Amazon claiming 50000 mAh for 20 dollars. I compared two last year and both delivered less than half their stated capacity. Stick with Anker, INIU, Mophie, Goal Zero, or Zendure and the numbers on the box will match what you get.
Frequently asked questions
How many mAh do I need in a power bank?+
10000 mAh covers two phone charges and fits in a pocket. 20000 mAh handles a tablet plus phone for a weekend. 25000 mAh is the airline carry on limit and the sweet spot for travel.
Can power banks charge laptops?+
Yes if they support USB C Power Delivery at 60W or higher. Anything below 45W will only trickle charge a MacBook while you use it.
Are power banks allowed on planes?+
Yes in carry on under 100Wh which is about 27000 mAh. Anything larger needs airline approval and most ban them outright.