While there are hundreds of different portable battery options for the iPhone, the NomadPlus is unique because it functions with an existing Apple charger. The NomadPlus plugs into an Apple wall charger, transforming it into a 1500 mAh portable battery with enough juice to recharge an iPhone to 70 percent.
One of the most cumbersome aspects of most battery packs is the recharging of the battery itself, but the NomadPlus allows the add-on battery to be charged as an iPhone charges via the wall charger, a simple solution that saves time and effort.
The NomadPlus is not much larger than an iPhone wall charger, measuring in at 2.75" x 1.33" x 1.10", and it weighs just 2.1 ounces. It supports pass-through charging, and will charge the iPhone before charging the battery itself.
While NomadPlus takes advantage of the Apple wall charger's superb design and engineering, its USB port can be used to power up any number of smartphone or tablet devices. Upcycling your wall plug with NomadPlus is the way to go when looking for a portable battery; it's a practical upgrade of something you already own.The NomadPlus can be pre-ordered from the Nomad website for $39, but as noted by TechCrunch, entering the promo code "nomadplus" will cut the price down to $20, presumably for a limited time.