The 4 Best MagSafe Power Banks for Low-Battery Emergencies

To size up these MagSafe power banks, I used an iPhone 16 Pro Max as my test device and rotated through each battery pack over the course of two weeks.

For every charger, I logged the iPhone’s battery percentage at regular intervals while it was attached, then used those data points to calculate an average wireless charging speed (percentage gained per hour). I also tracked total time to reach 100 percent—when a full charge was even possible.

Because capacity changes what “good performance” looks like, I evaluated 5,000 mAh and 10,000 mAh models differently. A 5,000 mAh MagSafe power bank is typically meant for quick top-ups (and won’t usually take a Pro Max to 100 percent), while 10,000 mAh models are the better fit if you want a complete recharge on larger iPhones.

Performance numbers weren’t the only deciding factor. While testing, I paid attention to whether the power bank stayed stable on the phone, whether it ran warm enough to trigger iPhone cooling pauses, how easy it was to toss into a bag, and whether the design gave you helpful quality-of-life features (e.g., kickstand, a built-in cable/strap, extra USB-C ports, or a clear battery percentage display instead of vague LED dots).

That mix is what ultimately determined which MagSafe power banks earned top spots in our roundup.