Best Prices Today: Sharge Icemag 3 Power Bank

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This magnetic power bank doesn’t just look cool—it is actively cooled by a fan to keep the fast 25W wireless charging at an optimum from start to finish.

The Sharge Icemag 3 takes active cooling to the next level, although this does mean there’s an audible hum during the fast-charging process.

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Simon Jary

Design

The Icemag 3 looks like no other portable power bank. At the top is a transparent section that lights up when it is charging a phone or being charged itself. The colors don’t seem to mean much, but they do look pretty.

It measures 4.3 x 2.8 x 0.78 inches (11 x 7.1 x 2cm) and weighs 7.7oz (220g). For a 10K capacity power bank that’s about average and a little lighter than some of the competition.

The slimmest 10K magnetic power bank we’ve tested is the 15W Anker MagGo Slim (0.58 inches deep); the 5K version of that power bank is just 0.34 inches thin.

On the back with the transparent section is a large stable metal kickstand that keeps the iPhone in place either in portrait or landscape mode.

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Sharge

At the bottom of the power bank is the built-in USB-C cable that you can use to recharge the power bank itself at a speedy 30W or use to wired charge any iPhone 15 or later at a brisk 35W.

There is also a 30W USB-C port so you can charge three devices simultaneously using wireless, the built-in cable and another via the port and your own cable. As with most power banks, multi-device charging reduces the overall output to 15W so you’ll lose the benefits of the 25W wireless and 35W cable with three things charging at the same time.

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</button><figcaption class="wp-element-caption">You can plug the built-in USB-C cable into the spare USB port to create a loop handle.</figcaption></figure>

Simon Jary

Wireless power

The most convenient way to charge an iPhone (12 or later) is via a magnetic charger, and the Icemag 3 utilizes the latest Qi 2.2 wireless charging technology to do so at 25W. You won’t find any wireless power bank that’s faster.

25W wireless charging is only possible with the iPhone 16 or later. Older iPhones are limited to 15W, which is speedy but noticeably slower than 25W.

In our tests a 15W charger can get a faded iPhone from 0-50% in around 45 minutes, while 25W does the same in just over 30 minutes. If you need your phone back in action quickly, 25W is the way to go.

That amount of power gets hot quickly, which can impact charging speed as the phone reduces the power to maintain its battery health. Sharge offsets this by using a fan to actively cool the power bank and phone. This keeps charging at an optimal level but does produce a noise that is quite noticeable. If you can keep the phone away from hearing range, that’s fine but it is the noisiest power bank we’ve heard.

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