As Amazon continues to expand, its deal events you need a keen eye to spot the discounts worth acting on. But, the frankly stupidly named, Prime Big Deal Days, does indeed have some tempting cuts on portable chargers. These wee slices of energy fit neatly in your pocket, bag, or car, and help you to stay connected when your small gadgets run out of steam. So, power up with these deals on some of the best power banks.
On the hunt for more bargains? Check out our categorized Absolute Best Prime Big Deal Days picks and our live blog of bargains.
Updated Oct 8: We added the Baseus PicoGo, Anker Nano, Anker MagGo, and Aohi Starship.
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Power Bank Prime Day Deals
Want to charge smartphones, tablets, or laptops? The upgrade pick in our guide is all you need. This beast from Anker boasts a 25,000 mAh capacity, has three USB-C ports rated at 100 watts, and can deliver 165 watts to juice multiple devices at once. You also get a handy built-in cable that doubles as a carry strap, a retractable cable, and a small display to see the precise percentage of remaining power, charging rate for each port, and battery temperature and health.
My pursuit of the best portable chargers has led me to test hundreds of power banks, but this might be my favorite. This transparent, prism-shaped device is a real looker, but it’s also feature-packed, with a maximum output of 170 watts and a 24,000-mAh capacity, not to mention tough, with an IP66 rating for water resistance. It will fast charge just about any small gadget, from phones to laptops, and the handy display shows battery life as a percentage, time remaining, and the input or output in watts.
The handy O-ring on the back of this Qi2 power bank can rotate 360 degrees and stay securely at any angle, so it works well as a stand to prop your phone in portrait or landscape orientation. It’s also pretty slim, with a 5,000 mAh capacity, charges at 15 watts wirelessly, and has a USB-C port that can charge at 20 watts.
The Qi2 wireless charging standard was developed in partnership with Apple and features MagSafe-like magnetic alignment and speedier iPhone charging rates of up to 15 watts. This power bank can also charge other Qi2 devices, like Google's Pixel 10 series, and existing Qi devices (just more slowly). This compact power bank also has a handy kickstand, a two-way USB-C port, and an LED display that shows remaining power and time to charge. You can attach MagSafe iPhones in portrait or landscape orientation, and it works with Apple’s StandBy mode, making it one of the best MagSafe power banks.
Slimmest of the slim, this magnetic power bank will cling to the back of your iPhone and keep the battery topped off. It is just 0.3 inches thick and weighs in at 112 grams, so you'll barely notice it's there. The capacity is 5,000 mAh, so you can expect at least a 50 percent battery boost for most iPhones.
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