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This waterproof power bank and flashlight that charges from the sun is 70% off — just $30

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These days, having a power bank with you wherever you go is a must. Whether you're commuting to work, on a long flight or doing something more physical like hiking or camping, a power bank is one of the top essentials you need to pack.

There are plenty of options on the market, but only a few are versatile enough to give you the power to charge multiple devices at once while offering the convenience of a flashlight and, best of all, cable-free charging. This best-selling option on Amazon checks all those boxes and then some.

Solar Power Bank With Fast-Charging and Built-In Super Bright Flashlight, $29.99 (Orig. $79.99)

Credit: Amazon
Credit: Amazon

$29.99 $79.99 at Amazon

This best-selling Solar Power Bank has a battery capacity of 42800mAh and uses high-density batteries. This essentially lets it load a more significant capacity without changing the volume and weight of the device, keeping it lightweight and portable.

What's arguably most impressive about this power bank is its ability to use the sun's rays to charge it in case of an emergency. To quickly give it some juice, it comes with a USB cable that allows you to charge it like any other power bank.

What further sets this power bank apart from the thousands of other picks on the market is its ability to withstand just about anything. This Solar Power Bank is drop proof, waterproof and dust-proof, making it perfect for outdoor activities.

Shoppers also love that its built-in flashlight is powerful enough to fully illuminate a blacked-out path at night, thanks to the LED Torch Lighting technology.

Credit: Amazon
Credit: Amazon

Thousands of Amazon shoppers gave this solar power bank five stars. One said it "changed the game for camping and river/lake days!"

"This power bank is absolutely amazing!" the shopper wrote. "It has come in so handy during the summer months when we go camping... Being able to charge via solar power is awesome and it can charge multiple devices or one device multiple times."

If you enjoyed this story, check out Lenovo's newest and most advanced laptop that's 63% off on Amazon for a limited time.

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