This Anker 5K power bank with built-in USB-C connector is on sale for less than $20

A portable battery is a necessity now, especially if your phone’s battery has seen better days. But a portable battery is useless if you don’t have the proper cords to connect your devices to it, so you often need to remember to pack more than just one thing. A few battery packs solve that problem, including Anker’s Nano Power Bank.

Now our choice for best portable charger for Android is even more tempting, thanks to a 36 percent markdown. The Anker Nano Power Bank is down to $19 from $30 in the USB-C…