If your smartphone is constantly running out of juice while you’re out and about, you might want to consider getting a power bank. Luckily for you, there’s one on sale over on Amazon right now. The online retail giant is selling the Poweradd Pilot X7 with a capacity of 20,000 mAh for $16.49. This will only get you the black version of the device, while the blue and the black/red color options will set you back $17.99.

The power bank normally sells for around $25, which means you’ll save a little less than $10 if you decide to get it. Don’t let the list price of $49.99 on Amazon fool you as it’s, as usual, quite inflated.

The Poweradd Pilot X7 features two USB ports, which means you can charge two devices at the same time. It comes with a bunch of safety features that offer protection against excessive current, overheating, overcharging, and more.

The power bank can be fully charged in about 10 hours and has a 24-month limited warranty. Those of you interested in getting it will have to move fast, as the deal will expire in less than 21 hours. Visit Amazon’s website by clicking the button below if you want to order it.