Modern power banks have long provided enough power to reliably charge not only smartphones but also laptops. But not every model is suitable for laptop charging. To make sure you don’t spend money on ...

The Anker Nano Power Bank pockets enough spare energy to handle those surprises without weighing you down or tangling cords ...

I left solar power banks from BioLite, Blavor, 4Patriots, and Hiluckey on my patio for four days to see how well they charged. None of them (except one) got past the first blue blinking dot. Even when ...

The manual recommends a first-use procedure: discharging the power bank completely until it shuts off (0%) before fully charging to 100%, preferably with a PD fast charger for optimal speed.

A lightweight and reliable power bank is essential for travel. This portable charger from Target’s Heyday brand costs just $10 and can fully charge most smartphones.

Most power banks output at a standard voltage of 5V. This is what smartphones, tablets, and earbuds need. It's the power that we were used to getting from an old USB-A wall wart charger.

As battery technology advances, powering your devices on the go will get faster and easier. Using a power bank with graphene makes charging time shorter, allowing you to charge phones, tablets ...