The Fire Phone has not been as popular as Amazon was hoping. But many folks still have bought one. If you have a Fire phone and plan to spend some time with it on the road, you may want to check these accessories out:
iOttie One Touch XL Windshield Dashboard Mount: it works for the Fire Phone, iPhone 6 Plus, and other large smartphones. It is fully adjustable and supports portrait and landscape views.
Incipio OffGRID Portable Backup Battery: certified “made for Amazon,” this portable 4000 mAh battery lets you use your Fire Phone longer outdoors. It is slim and lightweight.
Belkin MiXiT Car Charger: want to charge your smartphone in your car? This charger has you covered. It is ultra-compact and works with all your Kindle devices.
There are plenty of other interesting accessories available for the Fire Phone. The above products should be enough for short trips though.