Anker
Anker Prime 27,650mAh
4.6
The most powerful USB-C power bank available. 250W combined output charges laptops at full speed, and the 99.54Wh battery sits just under the FAA carry-on limit.
Capacity
99.54Wh
Output
250W
Weight
1.45 lbs
Best Power Banks of 2026: Buyer's Guide
The latest power banks do far more than top off your phone. With USB-C PD outputs reaching 140W and beyond, today's best models can fast-charge laptops, tablets, and phones simultaneously. Whether you need a pocketable 10,000mAh bank for daily commutes or a beefy 27,000mAh unit that charges your MacBook Pro at full speed, we have tested the top picks to match every travel style and budget.
How to Choose a Power Bank
Capacity (mAh / Wh)
Capacity is listed in milliamp-hours (mAh) or watt-hours (Wh). A 10,000mAh bank charges a phone 1.5-2 times. A 25,000mAh bank gives you 5+ phone charges or one full laptop charge. For airline travel, stay under 100Wh (roughly 27,000mAh) to comply with FAA rules.
Output Power (W)
Measured in watts, this determines how fast the bank charges your devices. A 20-30W output is enough for phones. For laptops, you need at least 60W USB-C PD, and ideally 100-140W for full-speed charging. Check that the output matches your device's charging requirements.
Ports
Look for at least one USB-C port with Power Delivery for fast charging. Additional USB-A ports are useful for older devices. Some power banks include 3-4 ports for charging multiple devices at once, though total output often drops when using multiple ports simultaneously.
Weight
Compact phone-charging banks weigh under 0.5 lbs. High-capacity laptop-charging models range from 1-1.5 lbs. If you carry the bank daily in a backpack or purse, every ounce matters. Slim-profile designs like the Baseus Blade 2 minimize bulk in laptop bags.
Airline Compliance
The FAA allows power banks under 100Wh in carry-on luggage without restrictions. Banks between 100-160Wh require airline approval. Banks over 160Wh are banned from flights entirely. Most high-capacity power banks are designed to sit just under the 100Wh limit for hassle-free travel.
Our Top Picks
#1 Best Overall
Anker Prime 27,650mAh
Anker · $180 · 4.6/5
The most powerful USB-C power bank available. 250W combined output charges laptops at full speed, and the 99.54Wh battery sits just under the FAA carry-on limit.
Read full review → #2 Runner Up
Anker Nano Power Bank 10000mAh
Anker · $30 · 4.6/5
The most pocketable power bank from Anker. Built-in USB-C cable and tiny form factor make it perfect for everyday phone charging.
Read full review → #3 Best Value
Anker 737 PowerCore 24K
Anker · $110 · 4.5/5
Anker's high-output power bank with 140W USB-C PD 3.1. The smart display and fast recharge make it ideal for laptop users on the go.
Read full review →All Power Banks We've Tested
Baseus
Baseus Blade 2
4.3
An ultra-slim 140W power bank that slips into any laptop bag. At under $100 with laptop charging capability, it's the best value for professionals on the go.
Capacity
72Wh
Output
140W
Weight
0.97 lbs
Ugreen
Ugreen Nexode 25,000mAh
4.4
The most versatile high-capacity power bank with four ports and 200W combined output. At $120 with 90Wh capacity, it balances power, ports, and price perfectly.
Capacity
90Wh
Output
200W
Weight
1.37 lbs
Anker
Anker 737 PowerCore 24K
4.5
Anker's high-output power bank with 140W USB-C PD 3.1. The smart display and fast recharge make it ideal for laptop users on the go.
Capacity
87.36Wh
Output
140W
Weight
1.3 lbs
$50
4.3
The best budget power bank with laptop charging capability. At $50 for 25000mAh and 140W output, it's unbeatable on price-to-performance.
Capacity
90Wh
Output
140W
Weight
1.1 lbs
$30
4.6
The most pocketable power bank from Anker. Built-in USB-C cable and tiny form factor make it perfect for everyday phone charging.
Capacity
36Wh
Output
30W
Weight
0.44 lbs
CUKTECH
CUKTECH 20
4.5
A high-performance 140W PD 3.1 power bank with a smart TFT display. Popular alternative to Anker Prime at a lower price point.
Capacity
90Wh
Output
140W
Weight
1.39 lbs
Frequently Asked Questions
How many phone charges can I get from a power bank?
A rough rule: divide the power bank's mAh by your phone's battery capacity, then multiply by 0.7 to account for conversion losses. A 20,000mAh bank charges a 4,000mAh phone about 3.5 times. A 10,000mAh bank gives you roughly 1.5-2 charges. iPhones have 3,200-4,700mAh batteries depending on the model.
Can a power bank charge a laptop?
Yes, but you need one with USB-C Power Delivery (PD) output of at least 45W, and ideally 60-140W for full-speed charging. Most modern laptops with USB-C charging ports work with high-output power banks. Check your laptop's charger wattage to find a matching power bank. Models like the Anker Prime 27,650mAh deliver up to 140W per port.
What are the TSA battery rules for power banks?
Power banks must be carried in carry-on luggage, never checked bags. Banks under 100Wh (roughly 27,000mAh at 3.7V) have no restrictions. Banks between 100-160Wh require airline approval before boarding. Banks over 160Wh are prohibited on commercial flights. Most travel-oriented power banks are designed to stay just under the 100Wh limit.