The Nikola Case will enable your iPhone 6 or Samsung Galaxy S6 battery to last longer for $89
Nikola Labs now lets interested customers order its case via a Kickstarter campaign - see the source link below. The accessory will be compatible with the iPhone 6 and Samsung Galaxy S6, and should start shipping in January 2016 if you pledge $99 to the campaign, or in February 2016 if you want to pledge just $89.
It looks like the Nikola Case may allow your smartphone's battery to last up to 50% longer. The case will obviously make the iPhone 6 and the Galaxy S6 bulkier (12 mm thick), but you probably don't care too much about that if you really want extra battery life.
In case you're wondering, this isn't a vaporware project. Nikola Labs is working with The Ohio State University to make sure its case will indeed be available next year. Interested?
source: Kickstarter, PR NewsWire