With the iPhone 17 now here, you’re going to want a power bank to top off your phone’s battery life when needed, and this MagSafe power bank from ESR is the perfect power bank to get the job done, especially with this deal on Amazon. Normally, the ESR 5,000mAh MagSafe power bank retails for $36.99, but Amazon now has it on sale for 53% off, bringing the price down to $17.49. You can bring the price down a little bit further if you enter the promo code 4I6FJ8OA at checkout. So, you can easily snap it onto the back of your iPhone 17 and grab extra battery power as needed. With a 5,000mAh capacity, you can also charge your phone once, so you essentially get two batteries in a day.