Best Buy deal: Buy an Apple iPhone 7 or iPhone 7 Plus and get a mophie powerstation mini for $9.99
The mophie powerstation mini features a 2500mAh battery and works with iOS and Android phones. To take advantage of this deal, go to the Best Buy website (click on the sourcelink), and add a mophie powerstation mini to your cart. After that, you shop for the Apple iPhone 7 or iPhone 7 Plus. That's all you need to do.
Limited quantities of the mophie playstation mini are available. There are some rules you must follow. The mophie powerstation mini and the iPhone must be purchased on the same receipt, and there are no rainchecks being handed out if Best Buy runs out of inventory of the power bank. Do not procrastinate if you don't want to miss out on this deal.
The Apple iPhone 7 comes with a 1960mAh battery while the iPhone 7 Plus carries a 2900mAh juicer. You can just about double your battery life on the latter, and more than double it on the former by picking up a mophie powerstation mini along with the purchase of your new iPhone. And don't forget that you'll be saving some money on this deal.