Fast charge on the go with Aukey's super-slim USB-C power banks at up to $12 off

Between checking your email, browsing your social media feeds, using GPS apps, streaming music, watching videos, and texting the group chat, it can be easy to drain even the most modern smartphones under normal use. That's why everyone should have a power bank around. If you don't have a portable battery in your daily carry, it's time to change that fact.

Amazon is offering the three-port Aukey 10000mAh USB-C Slimline Power Bank for only $20.99 today when you enter code 5UST2ZYM during checkout. This model is currently on sale for $29.99 without coupon, which is pretty affordable on its own, but saving some extra money is always nice. You'll get free shipping on this order by either spending at least $25 or by using Amazon Prime.

While some power banks can be bulky, this one isn't. It's slim enough that you can hold it while using it, or even slip it in your pocket while you're walking around. It is capable of simultaneously charging three devices via its single USB-C Power Delivery and two USB-A ports. The AiPower adaptive charging technology means your devices will be topped up as fast as it can handle. The USB-C port is capable of 18W PD charging and one of the USB-A ports is Quick Charge 3.0-enabled. Basically, it charges your stuff quickly. Charging with this model is safe too since it has built-in protections against overheating, overcharging, and excessive current. Your purchase includes a two-year warranty for added peace of mind.

With a 10,000mAh capacity, the power bank can fully charge modern phones two to three times before needing to be recharged itself. You can also use it to gain some extra life out of your tablet and headphones. When it comes to recharging the power bank, it does that quickly via USB-C, too.

Alternatively, double the battery capacity with Aukey's 20000mAh Slimline option. Code 6698BXYS snags you a $12 discount, dropping its price down to just $27.99. It is equipped with three USB-A ports and one USB-C port, all of which can be used simultaneously. As well as being able to charge phones and tablets multiple times over, one really neat feature of this power bank is its varied methods of recharging. It has a regular Micro-USB input, but also lets you use its USB-C port as fast-charging input and has an additional Lightning port as an input too. That's great for iPhone and iPad users who can just travel with the one cable.