Can a portable charger charge a phone?

Some portable chargers have multiple cables that can be plugged directly into your device while others come with built-in ports for USB or USB-C cords. Consider whether you want something specifically for your phone, or a multipurpose power bank that can charge your computer, smartwatch, or earphones, too. What does mAh stand for?

How much power does a portable charger use?

Some more powerful portable chargers also have 100-watt AC outputs, allowing you to insert a standard two- or three-pronged plug. For speedy laptop charging, you likely want a portable charger capable of outputting 100 watts of power or more, while around 18 watts or more could provide fast charging to a phone.

Why should you use a portable charger?

In situations like these, a portable charger—also called a power bank or battery pack—can feel like a lifesaver. Backup batteries are even more critical if you need to charge your electronics while the power is out after a storm.

Where can I buy a portable charger?

You can buy portable chargers from pretty much the same outlets as smartphones, tablets, and other devices. Apple and Samsung's official websites stock a number of portable chargers, while you can also find plenty from online retailers such as Amazon, Walmart, and Best Buy. Bryan M. Wolfe has over a decade of experience as a technology writer.

What makes a good portable charger?

Many of these chargers manage to fit a lot of charge into a small design thanks to their lithium-ion batteries. Capacity: Then there’s the other size: each portable charger has its own mAh rating for its maximum internal electrical charge. The bigger the mAh rating, the bigger the battery inside and the more it can recharge.

How do I choose a portable charger?

When looking for a portable charger, it’s important to keep in mind the mAh, size, and the devices you plan to charge with it. Some portable chargers have multiple cables that can be plugged directly into your device while others come with built-in ports for USB or USB-C cords.