If you plan on making extensive use of your iPhone during your workflow, you'll need a backup battery.

Amidst the bazillions of iPhone and iPod batteries peppering the CES floor, I stumbled across the HyperMac Nano. Its small and sexy design seemed like a natural companion for an iPhone.

Many people (including myself) use iPhone cases with built-in external batteries... but sometimes, those cases cause as many problems as they solve. So, it may be worth having something like the HyperMac Nano on hand. 

Get all the details in the video.

 What are your experiences with external batteries? Let us know in the comments!