9to5 Guide: the best iPad, iPhone + MacBook battery cases/packs

9 to 5 Mac (blog)9to5 Guide: the best iPad, iPhone + MacBook battery cases/packs9 to 5 Mac (blog)Earlier this week, I walked through a great collection of iPad, iPhone, and Mac products that I'd strongly recommend. Today, I'm here to help you choose an excellent spare battery for any portable Apple device. You can trust me because I've been ...