Aukey's ultra-slim USB-C Power Bank (PB-Y14) is available at Amazon for only $31.99 when you enter code Z3LXZX3V during checkout. At $8 off its regular price, you'll be snagging one of the best deals we've ever seen on this portable battery charger; it almost always sells for $40 and hasn't once had a notable price drop without a coupon.

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Aukey USB-C Power Bank (PB-Y14)

This skinny power bank is packed with four USB ports, including one USB-C port, that can keep several devices charging at once. Make sure to use code Z3LXZX3V to score 20% off its purchase.

$31.99 $39.99 $8 off

This power bank features a 3A total output with the ability to charge up to four devices simultaneously, one via USB-C and three via standard USB. When used solo, the USB-C port is capable of charging at up to 3A all by itself. There's also a micro-USB port where you can recharge the power bank, or you could recharge via the USB-C port. It has a 20000mAh capacity which Aukey claims is capable of recharging an iPhone 8 over seven times before needing to be powered up again. There's an integrated LED indicator to show its remaining battery level so you never have to wonder, while built-in safety features help to protect your devices against overheating, excessive current, and overcharging.

Aukey backs up this portable charger with a 24-month warranty. Customers at Amazon have left over 300 reviews resulting in a rating of 4.3 out of 5 stars at this time.

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