There is a particular kind of panic that sets in when your phone hits 5% in an unfamiliar city, with your boarding pass, map and hotel booking all on that one screen. The best portable chargers make that moment a thing of the past. They slip into a handbag, top up your phone on the go and, in some cases, even charge a laptop.
Power banks are some of the most popular items in Amazon’s Best Sellers in Cell Phone Accessories, with Anker and INIU regularly near the top. We chose six for different kinds of travelers, from a credit-card-thin magnetic power bank to a 20,000mAh workhorse for long-haul trips, and explain airline rules so you can fly with confidence.
The Best Portable Chargers at a Glance
- Best Magnetic Power Bank: Anker MagGo Power Bank 10,000mAh
- Slimmest Pick: Anker Nano Magnetic Power Bank 5,000mAh
- Best for Phone and AirPods: Belkin 10,000mAh Qi2 Slim Magnetic Power Bank
- Best Budget Travel Power Bank: INIU 10,000mAh 45W
- Best High Capacity Value: mophie Powerstation Core 20,000mAh
- Best for Laptops: Anker Prime Power Bank 20,100mAh
The 6 Best Portable Chargers to Buy Now
1. Anker MagGo Power Bank 10,000mAh – Best Magnetic Power Bank
Anker’s MagGo snaps onto the back of a compatible iPhone and charges wirelessly, so you can keep scrolling while it tops up. Anker lists a Qi2-certified 15W magnetic wireless pad, a 30W USB-C port for wired charging, a matte finish with a metal frame and aerogel insulation to help it stay cool. It measures just 0.58 x 2.78 x 4.09 inches.
Anker designed it for iPhone 12 through 16 models for magnetic charging. If you are an iPhone user who hates cables, it is one of the best portable chargers you can buy.
Anker MagGo Power Bank 10,000mAh Qi2
- Qi2-certified 15W magnetic charging
- 30W USB-C port
- Slim metal-framed design
- Aerogel cooling
2. Anker Nano Magnetic Power Bank 5,000mAh – Slimmest Pick
If you only need a quick top-up during an evening out, a 5,000mAh pack is enough and dramatically lighter. Anker says the Nano Magnetic is just 0.3 inches thin, supports Qi2 15W wireless charging and up to 20W from USB-C, and uses graphene cooling with smart heat control to stay below 104°F.
It will not fully charge most phones, but it is the one you will actually bring to dinner because it barely adds bulk.
Anker Nano Magnetic Power Bank 5,000mAh Qi2
- 0.3 inch ultra-slim
- Qi2 15W magnetic charging
- Up to 20W USB-C
- Cool-running design
3. Belkin 10,000mAh Qi2 Slim Magnetic Power Bank – Best for Phone and AirPods
Belkin’s slim magnetic pack is built for charging more than one device. The brand says it can fast charge your iPhone wirelessly at 15W while charging AirPods or another device by cable, and it supports up to three devices at once. A 2-foot USB-C to USB-C cable is included.
It is a smart choice for long travel days when your phone, earbuds and smartwatch all run low at the same time.
Belkin 10,000mAh Qi2 15W Slim Magnetic Power Bank
- Qi2 15W magnetic charging
- Charges up to 3 devices
- Slim, pocketable design
- USB-C cable included
4. INIU 10,000mAh 45W – Best Budget Travel Power Bank
INIU’s compact charger is a fixture in Amazon’s best-seller lists. The brand says its TinyCell battery makes it 40% smaller and lighter than typical 10,000mAh chargers, with 45W fast charging for phones and tablets. It comes with a short detachable braided USB-C cable, and INIU describes it as TSA-compliant and flight-safe, with nearly two full phone charges.
There is no magnetic wireless charging, but it works with almost any phone and many tablets. As a travel power bank on a budget, it is excellent value.
INIU 10,000mAh 45W Fast Charging Portable Charger
- 45W fast charging
- Compact TinyCell battery
- Detachable braided cable
- Flight-safe capacity
5. mophie Powerstation Core 20,000mAh – Best High Capacity Value
For long weekends, festivals or camping, more capacity means fewer worries. mophie says the Powerstation Core holds enough for up to four full iPhone charges, offers 18W USB-C Power Delivery for a 50% charge in about 30 minutes, and has one USB-C and two USB-A ports to charge three devices at once. It is made with up to 50% recycled plastics.
It is heavier than a 10,000mAh pack, so think of it as the bag charger rather than the pocket one.
mophie Powerstation Core 20,000mAh Power Bank
- 20,000mAh, up to 4 iPhone charges
- 18W USB-C PD
- 3 ports for 3 devices
- Up to 50% recycled plastics
6. Anker Prime Power Bank 20,100mAh – Best for Laptops
If you work on the move, the Anker Prime is a portable charger that can keep a laptop going. Anker lists 220W total output across two USB-C ports and one USB-A, up to 140W from a single port with a 5A cable, and fast 100W recharging that refills the bank to 50% in about 25 minutes. At 72.36Wh, Anker notes it is TSA-approved for carry-on.
It is a premium splurge, but for digital nomads and frequent business travelers it replaces several chargers.
Anker Prime Power Bank 20,100mAh 220W
- 220W total output
- Up to 140W for laptops
- 100W fast recharging
- Carry-on friendly 72.36Wh
How We Chose the Best Portable Chargers
We started with Amazon’s Best Sellers in Cell Phone Accessories and portable power banks, then compared capacity, output, wireless charging, size, ports and airline suitability on each product page. We prioritized brands with a long record in charging accessories. We did not test these chargers ourselves; read our editorial policy to learn more.
Portable Charger Buying Guide
Capacity (mAh)
5,000mAh is a top-up, roughly one partial phone charge. 10,000mAh gives about one to two phone charges and suits most days. 20,000mAh covers weekends, multiple devices or tablets.
Charging Speed (W)
Higher wattage means faster charging, as long as your phone and cable support it. Look for USB-C Power Delivery for modern phones, and 60W or more if you want to charge a laptop.
Magnetic vs. Cable
A magnetic power bank attaches to compatible iPhones (and phones with magnetic cases) for cable-free charging. Wireless charging is convenient but slower and less efficient than a cable.
Ports
Count the devices you carry. Two or three ports let you charge a phone, earbuds and a watch together.
Size and Weight
The best portable chargers balance capacity and portability. For a small handbag, choose 5,000 to 10,000mAh; for a backpack, 20,000mAh is fine.
Airline Rules
Power banks must go in carry-on luggage, not checked bags. The FAA’s PackSafe guidance on lithium batteries explains the limits; most banks under 100Wh are allowed in the cabin. Always check your airline’s rules too.
Tips for Traveling With a Power Bank
- Charge your power bank fully the night before you travel.
- Pack it in your carry-on and keep it easy to reach for security checks.
- Bring a short USB-C cable (and a Lightning cable for older iPhones).
- Turn on low power mode on your phone to make each charge go further.
- Avoid leaving power banks in hot cars or direct sun.
Which of the Best Portable Chargers Should You Pack?
For City Breaks
A 10,000mAh magnetic power bank like the Anker MagGo keeps maps and photos going all day.
For Nights Out
The Anker Nano Magnetic is slim enough for a clutch.
For Long-Haul Flights
The Belkin or INIU covers phone and earbuds; the Anker Prime adds laptop power.
For Festivals and Camping
The mophie Powerstation Core’s 20,000mAh and three ports keep the whole group charged.
Charging Etiquette and Safety on the Road
Owning one of the best portable chargers is only half the job; using it sensibly keeps you and your fellow travelers safe.
Watch for Heat
A power bank naturally gets warm while charging, but it should never become too hot to hold. If it swells, smells unusual or overheats, stop using it and recycle it properly according to local rules.
Use Good Cables
Cheap, damaged cables are a common cause of slow charging. Carry a certified USB-C cable from a reputable brand and replace frayed ones.
Charge Overnight Before Travel Days
Plug in your power bank and phone at the same time the night before, ideally using a multi-port wall charger, so everything starts the day full.
Share Thoughtfully
On group trips, a 20,000mAh pack with several ports keeps everyone happy. Label your cables or choose a distinctive color so they come home with you.
Store It Smartly
For longer storage, many manufacturers suggest keeping lithium batteries partly charged and topping them up every few months, which helps preserve capacity for your next adventure.
Portable Charger FAQ
Can I bring a portable charger on a plane?
Yes, in your carry-on. Power banks are not allowed in checked luggage, and there are watt-hour limits. Most chargers in this guide are below 100Wh, which is generally permitted, but always confirm with your airline.
How many times will a 10,000mAh power bank charge my phone?
Usually one to two full charges, depending on your phone’s battery size and charging losses.
Is a magnetic power bank worth it?
If you have a compatible iPhone, a magnetic power bank is wonderfully convenient. Android users or anyone who wants the fastest top-up may prefer a cable charger like the INIU.
How long do power banks last?
Lithium batteries gradually lose capacity over hundreds of charge cycles. Storing them partly charged and away from heat helps them last longer.
Final Thoughts on the Best Portable Chargers
The best portable chargers take the stress out of travel. Choose the Anker MagGo for cable-free iPhone charging, the Nano for evenings out, INIU for budget value, mophie for capacity and the Anker Prime for laptops. Check the current price on Amazon, as chargers are among the most discounted gadgets during Black Friday.
Planning your next trip? See our best travel accessories for women and pack it all in one of the best weekender bags for women.
