Apple sells a Anker MagSafe battery pack on its official website for $49.95. Amazon has the (exact?) same product for $29, down from its regular $42. Same Anker battery, same 5,000mAh capacity, same MagSafe magnets, same USB-C cable included. The only difference is where you buy it and how much you pay for it.
Snaps to your iPhone, no cable required, no alignment issues
The Anker 621 battery attaches magnetically to the back of any iPhone 12 through 17 and charges wirelessly without needing to plug anything in. The ultra-strong magnets hold the battery firmly in place while you use the phone normally, take selfies, make calls, or drop it in a pocket, without the battery sliding off or losing contact the way a loose wireless charger would. MagSafe alignment snaps automatically when you bring the battery close to the back of the phone, which eliminates the misalignment issues that plague standard wireless charging pads and keeps charging consistent throughout.
At 4.13 by 2.62 by 0.45 inches and 4.41 ounces, the battery adds almost no noticeable thickness or weight to the phone. It fits in a jeans pocket with the phone attached, which is the use case that matters most: a night out, a long day of travel, a festival, or any situation where you need power but do not want to carry a cable and a brick separately. The 5,000mAh capacity adds roughly a full charge to an iPhone 16 or 17, and the included 60cm USB-C cable handles wired charging when you have access to a wall outlet and want to top up both the phone and the battery at the same time.
Anker’s MiniCell technology keeps the physical size smaller than earlier versions while maintaining identical charging performance, and the 24-month warranty backs it up well beyond what most accessories cover.
With over 19,000 reviews at 4.3 stars and more than 9,000 units sold last month, it is one of the most proven MagSafe accessories on the market. If you have an iPhone and have ever run out of battery away from a charger, this is the most convenient fix available at the lowest price you will find for it.