Night Portable Power Bank

A power bank is basically a portable battery to allow you to easily charge devices on the move. For me, I like to carry a small power bank on most of my walks as while I often use paper maps while walking, I use my phone to navigate to and from the start of a walk.

Ultimately, the NB10000 provides reliable portable power for charging small devices. Our 2-foot drop test didn't leave a scratch on the Nitecore's carbon fiber exterior, so we especially recommend this power bank for outdoor use.

Read more: Steph Wetherell's full Nitecore NPB1 review The Nebo 20K is an affordable, high capacity power bank that is ideal for a multi-day walking or camping trip. It took a long time to charge up via the USB-C port – not surprising given its 20,000 mAh capacity – but when at capacity, it fully charged my phone around 5 times.

A USB power bank is a portable device that stores electrical charge and can be used to charge other devices, such as smartphones and tablets, via a USB connection. Some power banks, like the one mentioned, also support wireless charging.

Watching your phone or tablet steadily run out of power when you're nowhere near an outlet is stressful. But there's an easy solution: a portable battery or power bank. They are available in many sizes and capacities and can include handy features like fast charging and multiple ports.

Some larger power banks are equipped with wireless charging capability. On this list, both the BioLite Charge 100 Max and Goal Zero Sherpa 100 PD come with a wireless charging pad that can deliver up to 15W of power to compatible devices. In general, wireless charging from a power bank will be slower than using a cable.