Quick Answer
Anker 737 Power Bank 24000mAh 140W

The Anker 737 Power Bank (PowerCore 26K) is our top pick for long international trips — 26,800mAh charges a phone 6+ times, supports 87W fast charging for laptops, and meets airline carry-on requirements. For a smaller everyday travel charger, the Anker PowerCore Slim 10000 fits in a pants pocket with enough capacity for 2-3 phone charges.

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At a Glance

#ProductAwardPricePortsConnectionPower DeliveryOur Score
1
Anker 737 Power Bank 24000mAh 140WAnker 737 Power Bank 24000mAh 140W
Best Overall $109 9.2 Buy →
2
Anker PowerCore+ 26800 PD 45W with 60W Charger BundleAnker PowerCore+ 26800 PD 45W with 60W …
Budget Pick $65 8.9 Buy →
3
Anker PowerCore 26800mAh External BatteryAnker PowerCore 26800mAh External Battery
Best Budget $21 8.5 Buy →

Showing 3 of 3 products

Our Top Pick
Anker 737 Power Bank 24000mAh 140W

Anker 737 Power Bank 24000mAh 140W

$109
at Amazon
Best for: Travelers and campers needing high-capacity portable power bank

“Best power bank for travelers who carry a laptop. 140W output charges MacBook Pro at full speed, the smart display shows precise remaining charge, and 3 simultaneous ports handle every device in your ”

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What we like

Watch out for

Upc 194644098728
Asin B09VPHVT2Z
Brand Anker
Color Black
Voltage 5 Volts
Amperage 5 Amps
Portable No
Unit Count 1.0 Count
Is Electric No
Item Weight 1.39 Pounds
Reusability Rechargeable
Manufacturer Anker
Model Number A1289
Power Source Battery
Warranty Type Limited
Battery Weight 65 Grams
Connector Type USB Type A, USB Type C
Item Dimensions 6.13 x 2.14 x 1.95 inches
Number Of Ports 4
Antenna Location Phone
Battery Capacity 24000 Milliamp Hours
Battery Cell Type Lithium Ion
Best Sellers Rank #1,093 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories) #88 in Cell Phone Portable Power Banks
Number Of Outlets 3
Compatible Devices Laptop, Smartphone, iPhone 16/15/15 Plus/15 Pro/15 Pro Max, iPhone 14/13 Series, Samsung, MacBook, Dell, AirPods
Battery Charge Time 52 minutes
Number Of Batteries 1 Lithium Polymer batteries required.
Warranty Description 24-month stress-free warranty
Compatible Phone Models MacBook Air 2020, Samsung S22/S21/S20, iPhone 15/14/13/12 series
Item Dimensions L X W X Thickness 6.13"L x 2.14"W x 1.95"Th
Global Trade Identification Number 00194644098728
Other Special Features Of The Product Digital Display, Fast Charging
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Read Full Analysis

The Anker 737 at $109.99 is the travel power bank for laptop-carrying professionals. The 140W output is the specification that matters for travel scenarios: layovers at airports without outlets, work sessions on trains, or hotel rooms where you need to charge laptop and phone simultaneously from one device. At 140W, you're charging your MacBook Pro or Windows laptop at the same rate as the included wall adapter — not trickle-charging below load. The 24,000mAh capacity clears TSA's 100Wh carry-on limit (24,000mAh at 3.7V = 88.8Wh) and fits in a carry-on bag legally. The digital display showing exact percentage removes the guesswork of LED bar indicators — useful when deciding whether to recharge before a long flight. For travel specifically, the trade-off is weight and pack space. The 737 is heavier than the PowerCore+ 26800 PD and heavier than any phone-focused power bank. Light-packers who carry only phones and tablets don't need the 737's weight premium. The $109.99 price is also the highest on this page. The justification is specifically: you carry a laptop on trips and need full-speed charging away from outlets. Best for: business travelers who carry a laptop and need guaranteed full-wattage charging for work sessions without outlet access.

Full Specs & Measurements
Upc194644098728
AsinB09VPHVT2Z
BrandAnker
ColorBlack
Voltage5 Volts
Amperage5 Amps
PortableNo
Unit Count1.0 Count
Is ElectricNo
Item Weight1.39 Pounds
ReusabilityRechargeable
ManufacturerAnker
Model NumberA1289
Power SourceBattery
Warranty TypeLimited
Battery Weight65 Grams
Connector TypeUSB Type A, USB Type C
Item Dimensions6.13 x 2.14 x 1.95 inches
Number Of Ports4
Antenna LocationPhone
Battery Capacity24000 Milliamp Hours
Battery Cell TypeLithium Ion
Best Sellers Rank#1,093 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories) #88 in Cell Phone Portable Power Banks
Number Of Outlets3
Compatible DevicesLaptop, Smartphone, iPhone 16/15/15 Plus/15 Pro/15 Pro Max, iPhone 14/13 Series, Samsung, MacBook, Dell, AirPods
Battery Charge Time52 minutes
Number Of Batteries1 Lithium Polymer batteries required.
Warranty Description24-month stress-free warranty
Compatible Phone ModelsMacBook Air 2020, Samsung S22/S21/S20, iPhone 15/14/13/12 series
Item Dimensions L X W X Thickness6.13"L x 2.14"W x 1.95"Th
Global Trade Identification Number00194644098728
Other Special Features Of The ProductDigital Display, Fast Charging
Best Budget
Anker PowerCore+ 26800 PD 45W with 60W Charger Bundle

Anker PowerCore+ 26800 PD 45W with 60W Charger Bundle

$65
at Amazon
Best for: Daily commuters wanting slim power bank that fits in a back pocket

“Best bundle value for travelers who want to replace their laptop charger. 26,800mAh capacity, 45W MacBook Air charging, and the included 60W wall charger means you carry one cable for both outlet and ”

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What we like

Watch out for

Upc 848061060218
Asin B07XRJZXKY
Brand Anker
Color Black
Voltage 5 Volts
Amperage 26800 Milliamps
Portable Yes
Model Name galaxy,s9
Unit Count 1.0 Count
Item Weight 1.6 Pounds
Manufacturer Anker
Model Number B1376
Warranty Type Limited
Battery Weight 1.6 Pounds
Connector Type Micro USB, usb usb c
Output Current 2.25 Amps
Item Dimensions 7.68 x 3.54 x 2.36 inches
Number Of Ports 3
Antenna Location Laptop, Phone, Tablet
Battery Capacity 26800 Milliamp Hours
Battery Cell Type Lithium Ion
Best Sellers Rank #85,181 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories) #1,451 in Cell Phone Portable Power Banks
Compatible Devices Ipad, Laptop, Smartphone, Tablet
Number Of Batteries 1 Lithium Ion batteries required. (included)
Warranty Description 18 months
Compatible Phone Models Audiovox CDM3000
Item Dimensions L X W X Thickness 7.1"L x 3.1"W x 0.9"Th
Other Special Features Of The Product Portable, Travel
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Read Full Analysis

The Anker PowerCore+ 26800 PD at $69.98 is the travel power bank that most travelers should buy: maximum TSA-compliant capacity, USB-C PD at 45W for laptop and fast phone charging, and a bundled 60W GaN wall charger that reduces what you need to pack separately. For international travel especially, having the bank's charger included means one less adapter to source or forget. 26,800mAh charges a MacBook Air twice, an iPhone 15 six times, or provides a full day of mixed device charging for a laptop and phone simultaneously. The TSA limit of 100Wh is just met at 26,800mAh — maximizing the allowable capacity in a single bank. The travel-specific limitation: 45W output is sufficient for MacBook Air but charges MacBook Pro 14-inch and 16-inch at below-rated speed under processing load. Business travelers who carry a MacBook Pro and run demanding applications on flights should consider the 737 at $109.99 instead. For most travelers with MacBook Air, lightweight Windows laptops, iPad, or iPhone as their device lineup, this is the correct power bank for travel. Best for: travelers who want maximum TSA-legal capacity with USB-C PD and a bundled wall charger for all-in-one travel charging.

Full Specs & Measurements
Upc848061060218
AsinB07XRJZXKY
BrandAnker
ColorBlack
Voltage5 Volts
Amperage26800 Milliamps
PortableYes
Model Namegalaxy,s9
Unit Count1.0 Count
Item Weight1.6 Pounds
ManufacturerAnker
Model NumberB1376
Warranty TypeLimited
Battery Weight1.6 Pounds
Connector TypeMicro USB, usb usb c
Output Current2.25 Amps
Item Dimensions7.68 x 3.54 x 2.36 inches
Number Of Ports3
Antenna LocationLaptop, Phone, Tablet
Battery Capacity26800 Milliamp Hours
Battery Cell TypeLithium Ion
Best Sellers Rank#85,181 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories) #1,451 in Cell Phone Portable Power Banks
Compatible DevicesIpad, Laptop, Smartphone, Tablet
Number Of Batteries1 Lithium Ion batteries required. (included)
Warranty Description18 months
Compatible Phone ModelsAudiovox CDM3000
Item Dimensions L X W X Thickness7.1"L x 3.1"W x 0.9"Th
Other Special Features Of The ProductPortable, Travel
Best Budget
Anker PowerCore 26800mAh External Battery

Anker PowerCore 26800mAh External Battery

$21
at Amazon
Best for: iPhone users needing MagSafe-compatible wireless power bank

“Best capacity budget power bank for travelers with older devices or USB-A accessories. 26,800mAh maximum capacity at $59 is exceptional value, though the lack of USB-C PD limits its use with modern la”

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What we like

Watch out for

Upc 848061039238
Asin B01JIWQPMW
Brand Anker
Color black
Voltage 5 Volts
Amperage 6 Amps
Portable No
Model Name A1277
Unit Count 1.0 Count
Is Electric No
Item Weight 495 Grams
Reusability Rechargeable
Manufacturer Anker
Model Number A1277
Power Source Battery
Warranty Type Limited
Battery Weight 398 Grams
Connector Type USB-A *3,Micro-USB*2
Item Dimensions 7.1 x 3.2 x 0.9 inches
Number Of Ports 5
Antenna Location Laptop
Battery Capacity 26800 Milliamp Hours
Battery Cell Type Lithium Ion
Best Sellers Rank #28,077 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories) #797 in Cell Phone Portable Power Banks
Number Of Outlets 3
Compatible Devices Android smartphones, Samsung, iPhone 15/15 Plus/15 Pro/15 Pro Max
Battery Charge Time 6 Hours
Number Of Batteries 1 CR5 batteries required.
Compatible Phone Models Android smartphones and tablets, Samsung, iPhone
Item Dimensions L X W X Thickness 7.1"L x 3.2"W x 0.9"Th
Global Trade Identification Number 00848061039238
Other Special Features Of The Product Fast Charging
See Today’s Price →
Read Full Analysis

The Anker PowerCore 26800 at $25.99 travels well for one specific scenario: multi-device phone charging on a budget. At $25.99, it fits in a packing cube or toiletry bag and provides enough capacity for a family's phones to make it through a full travel day. Three USB-A outputs and 26,800mAh mean three simultaneous phone charges without rationing. The Anker brand reliability means the capacity is accurately rated — important when buying a travel power bank, where a dead bank at the gate because it underdelivered its rated capacity is a real consequence. 18-month warranty provides recourse if the bank fails within its expected life. The travel limitation in 2026 is the USB-A only design. Modern phones, AirPods cases, and most new earbuds use USB-C. Packing this bank for travel means also packing USB-A to USB-C cables, adding friction. For travelers who've upgraded to USB-C only cables, the PowerCore+ 26800 PD at $69.98 eliminates that incompatibility. The PowerCore 26800's travel case is budget phone charging where USB-A compatibility still applies. Best for: budget travelers charging multiple phones with USB-A cables who don't need laptop charging or USB-C PD.

Full Specs & Measurements
Upc848061039238
AsinB01JIWQPMW
BrandAnker
Colorblack
Voltage5 Volts
Amperage6 Amps
PortableNo
Model NameA1277
Unit Count1.0 Count
Is ElectricNo
Item Weight495 Grams
ReusabilityRechargeable
ManufacturerAnker
Model NumberA1277
Power SourceBattery
Warranty TypeLimited
Battery Weight398 Grams
Connector TypeUSB-A *3,Micro-USB*2
Item Dimensions7.1 x 3.2 x 0.9 inches
Number Of Ports5
Antenna LocationLaptop
Battery Capacity26800 Milliamp Hours
Battery Cell TypeLithium Ion
Best Sellers Rank#28,077 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories) #797 in Cell Phone Portable Power Banks
Number Of Outlets3
Compatible DevicesAndroid smartphones, Samsung, iPhone 15/15 Plus/15 Pro/15 Pro Max
Battery Charge Time6 Hours
Number Of Batteries1 CR5 batteries required.
Compatible Phone ModelsAndroid smartphones and tablets, Samsung, iPhone
Item Dimensions L X W X Thickness7.1"L x 3.2"W x 0.9"Th
Global Trade Identification Number00848061039238
Other Special Features Of The ProductFast Charging

Portable Chargers for Travel Buying Guide

Best Portable Chargers for Travel: Top Power Banks for InternationalPhoto by Lukas Blazek / Pexels

Our Top Pick

Anker 737 Power Bank 24000mAh 140W at $109.99 — Best-in-class power bank with 140W output that can charge a MacBook Pro at full speed — 24000mAh capacity handles mul....

Budget Pick: Anker PowerCore 26800mAh External Battery at $21.99 — Budget-friendly 26800mAh workhorse; slower charging but enough capacity for 5+ phone charges from a single top-up.

Anker 737 Power Bank 24000mAh 140W
Anker 737 Power Bank 24000mAh 140W
$109.99
See Full Review →

Great for: Frequent travelers, festival and outdoor event attendees, and anyone whose phone dies before the end of the day

Not ideal if: You're always near an outlet and rarely leave home for more than a few hours — a cable in your bag is sufficient

Airline Compliance

The FAA limits power banks to 100Wh (watt-hours) in carry-on bags. Most power banks list mAh — to convert: Wh = mAh x V / 1000. A 26,800mAh bank at 3.7V = 99.16Wh — just under the limit. Banks over 100Wh require airline approval. Check your bank's Wh rating before flying.

Capacity Guidelines

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10,000mAh charges a typical smartphone 2-3 times. 20,000mAh charges 4-5 times. 26,800mAh is the maximum TSA-compliant capacity and charges most phones 6+ times or a laptop once. For a week-long trip, 20,000mAh is usually sufficient for one phone.

Fast Charging

Look for USB-C Power Delivery (PD) 45W+ to charge modern laptops. 18W+ for fast phone charging. Standard 5W charging is too slow for travel use — you need the phone charged before the next activity, not 6 hours later.

Input Speed

iPhone 17 + MagSafe Battery Bank = Game Changer (Top 5 Batte
iPhone 17 + MagSafe Battery Bank = Game Changer (Top 5 Battery Banks T
How fast the bank recharges matters too. A 65W input charges a 20,000mAh bank in 2-3 hours. 10W input takes 10+ hours. Charge your bank overnight via a fast charger, and it will be ready for the next day.

Ports

One USB-C PD port plus one USB-A port covers most travel needs. Simultaneous charging from multiple ports is important if you charge phone plus earbuds plus tablet at once. Check that full wattage is available when all ports are in use simultaneously.
Quick Decision: Budget matters most → Anker PowerCore 26800mAh External Battery. Quality matters most → Anker 737 Power Bank 24000mAh 140W.

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Anker PowerCore+ 26800 PD 45W with 60W Charger Bundle
Anker PowerCore+ 26800 PD 45W with 60W Charger Bun...
$65.64
See Full Review →

Frequently Asked Questions

Can I bring a power bank on an airplane?
Power banks must be in carry-on luggage — never checked bags. The limit is 100Wh (watt-hours) per bank. Most power banks up to 26,800mAh at 3.7V are just under 100Wh and are compliant. Banks 100-160Wh require airline approval. Banks over 160Wh are prohibited on commercial flights. Check your power bank's Wh rating (usually printed on the label) and confirm carry-on compliance before traveling.
How many phone charges does a 20,000mAh power bank provide?
A 20,000mAh power bank delivers approximately 4-5 full iPhone charges or 3-4 Android (larger battery) charges in real-world use. Charging efficiency losses (typically 20-30%) mean you get less than the rated mAh to your device. A 20,000mAh bank provides roughly 14,000-16,000mAh usable capacity to devices. For a week-long trip with one phone, 20,000mAh covers most travelers.
Do I need a voltage converter for my power bank internationally?
No — USB power banks and their chargers operate on 100-240V input and handle any international outlet voltage automatically. You only need a plug adapter (not a voltage converter) to fit the local outlet shape. Modern USB chargers and power banks are universal voltage compatible by design. Bring a universal plug adapter for the outlets and your existing power bank charger works everywhere.
Can a power bank charge a laptop?
Yes — if the power bank supports USB-C Power Delivery (PD) at sufficient wattage. Most modern laptops (MacBook Air, Dell XPS, Surface) charge via USB-C PD. You need at least 45W PD output for laptop charging; 65-87W for faster charging. Check your laptop's charging wattage in its specifications. Power banks with 65W+ PD output (Anker 737, Baseus 30000) charge most laptops at an acceptable rate.
How long does it take to recharge a power bank?
Input recharge time depends on the bank's capacity and the charger you use. A 10,000mAh bank with a 20W charger recharges in 2-3 hours. A 26,800mAh bank with a 65W charger recharges in 3-4 hours. With a standard 5W charger, large banks take 10-15 hours — impractical for travel. Always travel with a fast charger capable of at least 45W for overnight power bank recharging.

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