This pocket-size 45W power bank with built-in cable is only $30 now | usagoldmines.com

I always say it’s mandatory to have a power bank in your bag when you’re out and about—you never know when you’ll get caught in an unexpected situation as your phone battery inches towards zero. A tiny power bank like the Baseus Picogo AC22 is more than enough for that, and right now it’s on sale for $30 at Amazon (down from its original $40).

It’s tiny in size but don’t be fooled. Its 10,000mAh capacity is enough to refill your phone about two times, which should suffice for a day trip around town or an overnight hotel stay. And it is tiny, physically speaking, measuring just 2.8 x 2.4 x 1.0 inches and weighing just 6 ounces. You can slip it into a pocket, purse, or backpack and not feel burdened.

It doesn’t sacrifice performance for size, either. The Picogo AC22 comes with a built-in USB-C cable that delivers 45W of fast charging, which can restore up to 50% battery in half an hour on most phones. That cable doubles as a carrying strap when you aren’t using it. And if you need to charge a second device, you can use the extra USB-C port (with a separate cable, not included) and charge two things at the same time.

Is it good enough for a laptop? Only ultralight, low-power models—definitely not gaming or workstation laptops—and only if you charge while the laptop isn’t being used. Honestly, if you need a power bank for your laptop, you’re better off with a bigger, faster one like this Anker 165W Laptop Power Bank. But as a phone-only backup charger, the Baseus Picogo AC22 is both affordable and convenient.