Amazon currently has AUKEY's very popular 10,050mAh battery pack on sale for just $24.99. That's a great price for this battery pack, especially since it does have Qualcomm's Quick Charge 3.0 included.
This battery pack from AUKEY is pretty small, and has a metal build. That makes it a bit tough and great for taking on the go with you, so you can keep your smartphone powered up and ready to go. There are two ports here, one is a micro USB port for charging the actual battery pack, while the other is a USB-A port that is compatible with Quick Charge 3.0. Remember that Quick Charge 3.0 is backwards compatible so even if you have a device like the Galaxy S8 or Galaxy S9 that doesn't support Quick Charge 3.0, you can still use this battery pack and get some pretty fast charging speeds here. On the top of the battery pack, you will find four LED lights and a power button. These lights will indicate how much juice is left in the battery pack, and whether you need to charge it now or not. And of course, the power button will turn it on or off. Unfortunately there's no USB-C PD here, but you can still charge USB-C devices with this battery pack, using a USB-A to USB-C cable.
This item is also eligible for Amazon Prime's free shipping. Which includes free two-day shipping, and pretty cheap (usually $3.99) next-day shipping if you need it extra fast. If you are not an Amazon Prime member yet, you can sign up for a free trial of Amazon Prime. You'll get 30 days free (if you're a student, you get 6 months), and then it's $99/year (or $49/year for students). Prime members do get a whole lot more than just free shipping though, so be sure to check out the full benefits.