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 20% off a selection of TOZO power banks today only which gives you the chance to do just that. Each has support for USB-C PD fast charging as well as USB-A and prices start as low as $15.99.

The sale offers different power bank capacities and styles, some with up to 20,000mAh and others that have colorful casings to suit your style.

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While some power banks can be bulky, these TOZO models aren't. Each is slim enough that you can hold it while using it, or even slip it in your pocket while you're walking around. Depending on which you go for, you'll be able to simultaneously charge two or three devices via its USB-C port and USB-A ports.

On the USB-C side, Power Delivery allows for compatible phones to be charged up to 50% in 30 minutes making these perfect on-the-go power banks for those times where you need a quick boost. TOZO's power banks will also work with other USB-C devices like your tablet or Nintendo Switch, or anything that can be powered over a regular USB-A cable.

The most affordable model is the TOZO WB1 charger which is down to $15.99 from $20. It features a super-slim design, 10,000mAh capacity, and has one 18W USB-C PD port with two USB-A outputs.

For the most power, go for the TOZO PB2 which has a 20,000mAh battery, USB-C PD and Quick Charge 3.0 support, plus a built-in display letting you know when to power it back up.

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