Watching your phone or tablet steadily run out of power when you're nowhere near an outlet is stressful. Fortunately, third-party portable batteries are available in many sizes and capacities. Some power banks offer fast charging, wireless charging, built-in cables, AC adapters, and flashlights—and even the ability to jump-start your car. Regardless of your budget, you can find a portable charger that keeps your device going when your battery icon starts to dip into the red.
But with so many options to choose from, how do you know which one is right for you? Read on for our tips, followed by the most important points to consider as you shop.
Best for Power On the Go
Anker 321 Power Bank (PowerCore 5K)
Why We Picked It
A huge battery capacity is convenient, but sometimes you need a small device that you can carry around without a backpack. The 5,200mAh Anker 321 Power Bank fits that need perfectly, especially because it offers both USB-A and USB-C ports.
Who It's For
This is ideal for people who care more about portability than capacity. It won't charge your phone multiple times, but it can still get you through a long day.
Best for Laptops
Why We Picked It
The Anker 737 features 140W output, which means it can charge bigger, more power-hungry devices like a laptop just as effortlessly as it can juice up a phone or tablet.
Who It's For
If you often need to charge a laptop when you're nowhere near an outlet, this 24,000mAh backup battery can lower your stress levels while raising your battery’s charge. It's more expensive than other options on this list, so people who tend to charge smaller devices like phones or tablets are better off with the more affordable choices.
Anker PowerCore Slim 10K PD
Anker PowerCore Slim 10000 PD
Why We Picked It
The Anker PowerCore Slim 10K PD offers high-end features like Power Delivery for fast charging, as well as both types of USB ports at a reasonable price.
Who It's For
This 10,000mAh charger doesn't have the highest capacity, but it's more than enough for people who need just a little extra power throughout the day and don't have the patience for slow charging speeds.
Why We Picked It
Apple's MagSafe Battery Pack is no longer available, but Belkin's 5,000mAh BoostCharge Magnetic Wireless Power Bank connects just as easily to your iPhone. This MagSafe-compatible battery offers wireless charging speeds of up to 7.5W, doesn't add too much bulk, and even includes a handy built-in stand for propping up your phone.
Who It's For
If you want to recharge your iPhone on the go without wires, the Belkin BoostCharge Magnetic Wireless Power Bank can get you through the day. Other portable batteries on this list can keep your phone going longer, but none are as convenient.
Nimble Champ Portable Charger
Why We Picked It
With a 10,000mAh battery, dual 20W USB-C PD outputs for charging two devices at once, and five color options, the Nimble Champ offers convenience and portability in an attractive package. Nimble also says it's made from 90% certified recycled plastic, a plus for the eco-conscious crowd.
Who It's For
This charger might not have the highest capacity or the most rapid charging speed, but it should provide enough juice to get you through even the longest day. Its small size, bright strap, and fun colors make it quite fashionable, too.
Most Durable
Why We Picked It
Many people know Otterbox for its durable phone cases, but the company is now bringing that expertise to the world of power banks. In addition to its strong build quality, the Otterbox Fast Charger Power Bank has all the key features you need, such as fast charging with PD, both types of USB ports, and several options for battery capacity (5,000mAh, 10,000mAh, 15,000mAh, and 20,000mAh).
Who It's For
If you are worried about damaging your backup battery when you travel or commute, this is one of the safest bets. It also comes with a limited lifetime warranty.
Statechi Duo Wireless Charger Power Stand
Why We Picked It
The foldable and portable Statechi Duo Wireless Charger Power Stand lets you replenish your phone and AirPods at the same time without wires via its 10,000mAh battery. There's even an extra 18W USB-C port on the back for plugging in a third device simultaneously. Just keep in mind that the wireless charging rate tops out at 10W and that using the battery with multiple devices dilutes the charging speed across all the outputs.
Who It's For
If you enjoy the convenience of wireless charging and need to keep multiple devices running on the go, this Statechi battery makes a lot of sense. A built-in stand allows you to continue using your phone while it charges too, which helps avoid downtime.