The 8 Best Portable Chargers of 2021

Never run out of juice

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Some portable chargers allow you to connect up to six devices at once, while others are enabled with Qi wireless charging for a clutter-free workspace. There are also high-capacity options that can give you over 90 hours of battery life.

When shopping for chargers, it's important to consider features like voltage protection and charging speeds. With that in mind, here are the best portable chargers to power up your devices during work.

Best Overall: Anker PowerCore Speed 20000

This Anker power bank supports Qualcomm Quick Charge 3 technology, allowing you to charge your smartphone, smartwatch, or tablet in less time than other options provide. You also get up to seven days of power with the Powercore Speed; it can charge an iPhone 7 to full battery seven times, a Galaxy S8 four times, and an iPad Air 2 twice. With two USB Type-A ports, you can charge multiple devices at once. 

The body of the power bank is drop-resistant, protecting the battery from minor bumps and shocks. It's also compact enough to slip into a backpack, laptop bag, or carry-on luggage, and it comes with a travel pouch for convenient storage.

Best Compact: Anker Powercore II 10000

A bulky power bank can be awkward and uncomfortable to travel with, but the Anker Powercore II is compact and lightweight, measuring just 3.8 x 2.4 x 0.9 inches and weighing less than 7 ounces. The textured body makes it easier to hold onto, and the LED indicator wheel lets you know how much juice there's left. The power bank features PowerIQ 2.0 technology that automatically identifies your device and optimizes power output for more efficient and faster charging. 

Depending on the device, you can get a full charge in as little as 90 minutes. Even more, it has a fast-charge input port that reaches full capacity in just four hours. The power bank also features both voltage protection and static electricity resistance to protect your devices from electrical damage. 

Best Quick Charging: Anker PowerCore 20100

The Anker PowerCore 20100 is designed to give your devices maximum power in as little time as possible. It uses PowerIQ technology to detect the devices that are connected to the charger and automatically optimize power flow. Plus, it uses VoltageBoost to deliver more power. 

This power bank has enough capacity to fully charge an iPhone X almost five times, an iPhone 8 seven times, and a Galaxy S8 five times. Multi-point voltage and current protection also keeps the power bank and your devices safe from overcharging or power surges.

Best for Multiple Devices: Maxoak Power Bank

The Maxoak Power Bank is on the bulky side, but it features a truly massive capacity that can charge an iPhone 8 or Galaxy S8 up to 15 times, while laptops can get two full charges.

With four USB ports, as well as both 12 and 20V outputs, you can connect your smartphone, smartwatch, tablet, and even your laptop all at once. It also has passthrough charging technology so you can charge the power bank while you use it. An automatic shutoff feature protects your devices from overcharging or any issues with electrical currents.

Read Next: The Best Charging Stations

Best Wireless: Mophie Wireless Powerstation

The Mophie Wireless Powerstation charges your devices without the clutter of cords and cables. It's compatible with Qi-enabled technologies for on-contact, instant charging, and there's a button for powering it down to save energy when not in use. 

The integrated USB port allows for pass-through charging so you can power the battery pack and your devices at once, or you can connect a secondary device for charging. It also gives you up to 48 hours of extra battery life.

Best Budget: Poweradd Slim 2

The Poweradd Slim 2 is a budget-friendly, yet dependable charger. It recharges in three hours and gives you two full charges on most smartphones, as well as one extra full charge on an average tablet. 

The portable power bank uses an auto-detection feature to optimize power flow to your devices for more efficient charging. Plus, it comes in five different colors.

Best with Integrated Cables: Mophie Powerstation Plus XL

The Mophie Powerstation Plus XL has an integrated cable with both micro USB and Lightning tips, meaning you won't need any extra cords. When not in use, the integrated cable tucks into a body channel to protect against damage. It also allows for wireless charging with compatible devices, while a secondary USB port lets you plug in another device to charge at the same time. The power bank gives you up to 34 hours of extra battery life and an LED indicator lets you know how much power is left. 

With Priority+ charging, you can charge your devices and the power bank at the same time, fully powering your smartphones or tablets first before the battery pack charges itself. The textured fabric finish also adds style and prevents messy fingerprints from showing.

Best for Emergency Charging: AtomXS Key Chain

An excellent backup charger, the AtomXS has enough power for up to three hours of battery life. It easily fits onto a keychain for ultimate portability, and the charging tip retracts to prevent damage. Compatible with most devices, it's available with Lightning, micro USB, and USB-C charging tips.

The charger is also made of a metal shell and rubberized coating for durability and to make it easier to hold. The touch sensor lets you quickly power it on or off. Better yet, an LED indicator strip lets you know how much power the charger has.

Meet the Expert

Taylor Clemons has over three years of experience writing about games and consumer technology. She has written for Lifewire, Digital Trends, TechRadar, and her own publication, Steam Shovelers.