The Sharge Icemag 3 is the brand’s latest 10,000mAh magnetic power bank, introducing faster wireless charging, a built-in USB-C cable, and an updated design inspired by retro point-and-shoot cameras. With Qi 2.2 support and active cooling, it aims to deliver consistent performance even during high-wattage charging. After testing it across multiple devices, we found it to be one of the more capable and versatile magnetic power banks currently available.
Design & Build Quality
The Icemag 3 stands out immediately thanks to its transparent top section, which reveals a cooling fan illuminated by RGB lighting. The aesthetic is unique without feeling gimmicky, and the transparent window doubles as a functional element by allowing heat to dissipate efficiently.
The unit measures 11 × 7.1 × 2cm and weighs 220g, which is typical for a 10K magnetic power bank. A solid metal kickstand on the back supports both portrait and landscape modes, making it convenient for video calls or media playback while charging.
Sharge includes a built-in braided USB-C cable that tucks cleanly into the base of the unit. The cable can fast-charge devices at up to 35W and also recharge the power bank itself at 30W. A secondary USB-C port allows for additional wired charging, bringing the total number of chargeable devices to three when using wireless + built-in cable + USB-C port simultaneously.
Wireless Charging & Performance
The Icemag 3 supports the latest Qi 2.2 standard, enabling 25W wireless charging for compatible devices such as the iPhone 16 and 17 series. Older iPhones max out at 15W but still benefit from stable charging thanks to the power bank’s active cooling.
In our testing, the magnetic attachment was strong and secure. A 30-minute wireless charge brought an iPhone 17 Pro Max from 1% to roughly 32%. A full wireless charge took around 2 hours and 50 minutes, which aligns with expectations for a 10,000mAh unit delivering high-wattage output.
The active cooling fan noticeably improves charging stability during long sessions. However, the fan produces an audible hum that is more prominent than other magnetic power banks. While not disruptive in a typical desk setup, it is noticeable in quiet environments.
Wired Charging & Recharging
Both the USB-C port and built-in cable support up to 35W output, and we consistently achieved the advertised speeds during testing. The only limitation was on recharging the power bank itself, where we could only draw around 30W instead of the rated 35W. Charging the Icemag 3 from 0% to full at 30W took approximately 2 hours and 30 minutes.
The unit also supports pass-through charging, allowing a connected device to charge while the power bank itself is plugged in.
Battery Capacity
With its 10,000mAh (39.1Wh) battery, the Icemag 3 delivered a total recharge capacity of around 171% on an iPhone 16 Pro—enough for one full charge and an additional partial refill. This performance is in line with most 10K magnetic power banks, though some competitors offer slightly higher efficiency.
Verdict
The Sharge Icemag 3 delivers a strong mix of performance, design, and convenience, especially for users who rely heavily on magnetic charging. The 25W Qi 2.2 support, reliable wired output, and built-in cable make it a versatile option for travel and daily use. The active cooling system is effective, though the audible fan adds a trade-off that some users may notice.
Overall, it is one of the most capable 10K magnetic power banks available today—well-suited for anyone looking for fast, stable wireless charging in a compact, feature-rich package.
Also Read: Sharge AeroMag 10K Power Bank Review
