Get this 10000mAh magnetic iPhone battery pack for just $30

This magnetic wireless power bank from ESR is impressive for a few reasons. For starters, it has a 10,000mAh capacity, which is double that of other packs, and it can fast-charge at speeds of up to 20W (wired). It’s also on sale for just $30, meaning you can pick up 3 of these things for the price of Apple’s MagSafe battery pack.