For the past few years, I’ve made sure I always have a power bank with me when I leave the house because it’s something that gives me peace of mind. If I end up running late and my phone’s battery fails on me while I’m out, I can still keep it charged and stay connected. Of all the power banks I’ve used, the Anker Zolo is the one I carry with me most often—and right now, it’s on sale for $34 on Amazon . View this Amazon deal One of the best things about this power bank is that it’s fairly compact, measuring just 4.72 x 2.90 x 1.24 inches and weighing 0.78 pounds. This means it’s easy to slip into a pocket (even my tiny pockets, thanks women’s fashion) or toss into a bag. It also doesn’t hurt that it comes with a built-in USB-C cable that doubles as a carrying strap when not in use. If you need to charge multiple devices, that’s no problem—you’ll find two extra charging ports, one USB-C and one USB-A. That built-in cable is sooooo good, though, because I can’t count how many times I’ve realized entirely too late that I’d left the house without a charging cable! The 20,000mAh capacity is enough to charge your phone fully about four times over, although that’ll vary depending on your phone model and whether you’re using it while it charges. At this price, it’s a no-brainer. Get this Anker Zolo power bank for $34 while you can! There’s no buyer’s remorse here. Trust me. Fast-charge 3 devices while on the go with Anker's tiny 20K power bank Buy now at Amazon