Best Power Banks and Portable Chargers
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A good power bank is the most boring, most valuable tech you'll own. Flights, festivals, power outages, the airport chair that's mysteriously twelve feet from the only outlet — a charged phone solves a remarkable number of modern problems. Here's how to buy the right one, once.
Capacity, translated
- 5,000mAh: one phone charge. Pocketable, great for evenings out.
- 10,000mAh: 2–3 phone charges. The everyday sweet spot.
- 20,000mAh: 4–6 phone charges or one laptop. Travel size.
- 27,000mAh+: laptop-focused, multiple device days. Note: airlines cap carry-on batteries at 100Wh — roughly the 27,000mAh line. Don't pack bigger.
Wattage matters as much as mAh. A 10W bank trickle-charges; an 18–20W one fast-charges phones; 45–65W is needed for laptops. Check the output, not just the capacity.
Our picks
1. Anker 733 Power Bank — best hybrid (charger + battery)
Half wall charger, half 10,000mAh battery: plug it in at night and it's a fast charger; grab it in the morning and it's a power bank. The single smartest object in a travel bag.
- 2-in-1: wall charger + power bank
- 65W — charges laptops
- Eliminates a whole category of packing
2. INIU 20,000mAh — best budget value
INIU is the value leader in this category: 22.5W USB-C output, a big capacity, clear percentage display, and a reputation for reliability that the no-name brands never earn.
- Tremendous capacity per dollar
- Fast USB-C charging
- Trusted brand with long warranty
3. Anker Prime Power Bank — best premium / laptop travel
Anker's flagship line: massive capacity, very high output for laptops, and a smart display showing exactly what's flowing. For "everything charges from one brick" travel, this is it.
- Charges laptops at full speed
- Digital display of time-to-empty
- Premium build quality
4. Anker 622 MagGo Battery — best for iPhone
A magnetic snap-on battery that doubles as a kickstand — charges while you scroll, no cable needed. The most convenient phone charging that exists.
- Snaps magnetically to iPhone
- Built-in kickstand
- Slim enough to live in a jacket pocket
5. Belkin BoostCharge 10K — best slim everyday
A slim, rounded 10,000mAh bank that pockets comfortably and charges two devices at once. The "keep it in the bag and forget it" option.
- Slim, pocketable shape
- Dual-device charging
- Trusted accessory brand
6. Amazon Basics 10,000mAh — best backup pair
An inexpensive 10K bank to keep in the car, the camper, or a go-bag. Not fancy — reliable, cheap, and better than nothing in an outage.
- Budget pricing
- Enough for 2+ phone charges
- Easy to stash several
FAQ
Why did my power bank die after a year?
Cheap cells degrade with heat and full-discharge cycles. Reputable brands (Anker, Belkin, INIU) rate their cells for hundreds of cycles; $8 no-names often don't survive the year.
Can I take power banks on planes?
Yes, in carry-on only (never checked), under 100Wh. That's roughly 27,000mAh at standard voltage — the category mainstream anyway.
Do magnetic batteries work through cases?
Only through MagSafe-compatible or very thin cases. Thick rugged cases need removal or a magnetic ring adapter.
The bottom line
Traveler: Anker 733 hybrid. Best value: INIU 20K. iPhone user: Anker 622 MagGo. Laptop power: Anker Prime.
Prices and availability change often — always check the current price on Amazon before buying.
