The Anker 633 Magnetic Battery offers convenient wireless charging via magnetic attachment and a foldable metal kickstand, making it ideal for travelers and outdoor use. Reviewers noted its compact size and pass-through charging capabilities, though some found the 7.5W wireless charging slow and the lack of a smart display limiting. The Great Outdoors rated it 4/5, calling it a useful but expensive option. It's best suited for users with compatible phones who value portability over maximum charging speed.
Full review
Magnetic attachment reliability
The Anker 633 Magnetic Battery's magnetic connection proves robust in real-world testing, with reviewers noting its strong grip that prevents accidental detachment during use. The Great Outdoors' Steph Wetherell confirmed the magnet felt strong and wouldn't easily fall off her iPhone 14 Pro, while Android Authority's Rita El Khoury reported successful use with her Pixel 7 Pro equipped with a Moment (M) Force case. The magnetic array consists of circular magnets allowing for portrait or landscape positioning, though users should note that the battery's design may cause it to protrude slightly from the phone's back. Tech From Dad's Andrew found the magnetic connection reliable enough to keep the device secure during daily use, even when placed in pockets or on surfaces. However, the magnetic strength does depend on case compatibility, with some reviewers noting that non-magnetic phone cases like OtterBox defender cases can interfere with charging.
Charging speed and output capabilities
Anker 633 delivers substantial charging power with its 20W USB-C output and 18W USB-A output, making it suitable for rapid charging of modern smartphones. Tech From Dad's Andrew noted that the USB-C port provides 20W of power sufficient for most phones on the market, while Android Authority's Rita El Khoury observed that USB-C charging reached speeds of 15W during testing. The power bank's 10,000mAh capacity allows nearly two full charges of an iPhone 14 Pro, though wireless charging operates at a lower 7.5W output. The Great Outdoors' Steph Wetherell found that wireless charging took a long time to charge her phone, but appreciated the ability to use her phone while charging. The device also features pass-through charging capability, enabling simultaneous charging of the power bank and connected devices. However, the wireless charging speed appears to be limited, with Rita El Khoury reporting only 5W speeds even when using the 7.5W-rated Qi pad, suggesting potential inefficiencies in power delivery.
Portability and physical design
The Anker 633's dimensions of 4.21 × 2.61 × 0.71 inches (107 × 66.5 × 18.15 mm) and weight of 7.68 oz (218 g) create a notably larger form factor compared to Apple's MagSafe battery. Tech From Dad's Andrew noted that while the battery is larger than Apple's version, it provides nearly twice the charge capacity. The kickstand design is made of metal, contributing to the product's solid feel, according to the same reviewer. However, this size presents challenges for pocket carrying, as Rita El Khoury from Android Authority mentioned having difficulty keeping it connected to her phone in her jeans pocket due to the side-mounted USB-C port that extends outward. The device's design includes a foldable stand for hands-free phone viewing, which was found useful by both reviewers. The battery's compact design makes it suitable for travel and daily use, though its bulkier profile may not appeal to users seeking ultra-portable options.
Wireless charging performance
While the Anker 633 supports wireless charging with a 7.5W output, performance varies significantly between device types. Android Authority's Rita El Khoury reported that wireless charging was annoyingly slow on her Pixel 7 Pro, achieving only 5W speeds despite the 7.5W rating. The same reviewer noted that wireless charging was more acceptable on her iPhone 12 Pro Max. The Great Outdoors' Steph Wetherell found the wireless charging to be slower than expected, taking a long time to charge her phone, but appreciated the convenience of using her phone while charging. The discrepancy in wireless charging speeds suggests that the power bank's wireless capabilities may be optimized for Apple devices or specific phone models. The device's wireless charging pad is positioned on top of the battery, requiring proper alignment for optimal charging efficiency. Users should expect slower wireless charging compared to wired methods, particularly when using non-Apple devices.
Battery capacity and longevity
The Anker 633's 10,000mAh capacity provides substantial power for multiple device charges, with The Great Outdoors' Steph Wetherell reporting two full charges from her iPhone 14 Pro. The battery's capacity is derived from two 5,000mAh batteries connected in series, according to Anker's specifications. Tech From Dad's Andrew noted that the battery provides nearly twice the charge compared to Apple's MagSafe battery, despite being larger in size. The power bank can charge an iPhone 15 Pro up to 1.8 times according to Anker's claims, though actual performance may vary based on device compatibility and usage patterns. The battery's ability to charge itself while powering other devices contributes to its overall utility, though charging time for the power bank itself is noted to take approximately 1.8 hours according to Anker's internal lab testing.
Safety and protection features
Anker's MultiProtect safety system is designed to protect both users and devices with features including temperature control, foreign object detection, and radiation shielding. The company's blog describes this system as monitoring temperature over 3 million times daily for safety. The Great Outdoors' Steph Wetherell noted that the power bank is charged by a USB-C port that also acts as one of the outputs, and that the recommended usage range is only down to 0°C, suggesting potential limitations in cold weather conditions. Android Authority's Rita El Khoury reported that the device heats up slightly during wireless charging, particularly when used for 30 minutes or more, but noted that other charging methods generate less heat. The power bank includes surge protection, short circuit prevention, and other safety features as part of Anker's safety system. However, users should be aware that wireless charging generates heat and may become warm during extended use, particularly when the phone is in active use while charging.
Compatibility and case requirements
The Anker 633 requires compatible phone cases for optimal magnetic attachment, with The Great Outdoors' Steph Wetherell noting that the power bank did slightly stick out of the bottom of her phone but not enough to cause significant annoyance. Android Authority's Rita El Khoury confirmed that the battery works with iPhones and Android phones when equipped with a MagSafe adapter or case. The device is primarily marketed for Apple's MagSafe technology, with compatibility extending to iPhone 12 models and newer. However, the power bank is not compatible with non-magnetic phone cases such as OtterBox defender cases, according to Anker's specifications. Users must ensure their phone has magnetic or metal attachment points for proper functionality. The battery's magnetic connection works best with specific phone cases, and users should verify compatibility before purchase. The device's design includes a metallic kickstand that contributes to its secure attachment to compatible phones.
Strengths
- +Magnetic attachment allows phone to charge wirelessly while using the device
- +Compact and portable design with 10,000mAh capacity
- +Supports fast charging with 20W USB-C output and pass-through charging
Watch-outs
- −Wireless charging is limited to 7.5W, significantly slower than wired options
- −Requires compatible phone case for magnetic charging functionality
- −No smart display; only basic LED lights indicate charge level
How it compares
The Anker 633 Magnetic Battery provides a portable solution with magnetic attachment and pass-through charging, but its 7.5W wireless charging is slower than the 15W offered by the Zens Magnetic Nightstand Charger. Unlike the Anker MagGo, it doesn't charge Apple Watch or AirPods simultaneously, and lacks a stand. Compared to the INIU Wireless Charger, it's more compact and case-friendly, but lacks the adaptive lighting and three-year warranty.
Rating sources
“The Anker 633 Magnetic Battery power bank has some nifty features but, at this price point, it wouldn't be Steph Wetherell's first choice.”
“If you want a great MagSafe Battery pack with LOTS of charge, buy this Anker 633 MagGo now!”
“The Anker 633 magnetic battery is a blocky power bank with a magnetized wireless charging pad on top. It's MagSafe-compatible and works with iPhones as well as Android phones, provided you have a MagSafe adapter.”
Our 4.3 score is the average of these published ratings. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.
