Aukey 36W/7.2A 3 Port USB is fantastic as a short road trip battery. It's bigger than I want to carry when flying but is perfect for charging. Right now Aukey has their Aukey 36W/7.2A 3 Port USB Car Charger Power Adapter with AIPower tech for Apple iPad Air 2, iPad Air, iPad 4, 3, mini3, mini, iPhone 6, iPhone 6 Plus, iPhone 5S, 5, 4S,4; Samsung Galaxy S5, S4, S3, note 4, Note3, Note 2, Galaxy Tab; Nexus 10, 7, 6, 5, 4; LG G3, Optimus; HTC ONE M8; Motorola Moto G, Moto X; Bluetooth Speaker, GPS, External Battery Charger and Many other USB-Powered Mobile Devices - Black for cheap price. You'll just need to visit the site.
AI Power: Maximized the Capability and Charging Speed. Don't settle for restricted charging speeds from standard USB ports. Set yourself free with revolutionary AIPowerTM technology for intelligent device detection: ride the recharging autobahn and get the maximum charging speed (up to 2.4A) every time. Powerful yet safe. Using top grade TI (Texas Instrument) microchips, we ensure you receive full power and also full safety. With the over-heated, over-charging protection circuit, our car charger protects your phone and tablet from any harm from the unsteady voltage in the car when charging. Three USB ports With 36W 7.2A output, the Aukey's car charger can simultaneously charge three tablets or three smart phones at full speed (up to 2.4A). It is easy to use and compatible with both Apple, Android devices and most other USB charging devices. Elegantly portable Simple and compact (3.75*1.83*1.34in / 1.98oz) design, it is among the smallest and lightest USB car charger with 7.2A output in the market. Popular Compatible Models: Apple: iPhone 6 6Plus 5S 5C 5 4S 4; iPads and iPods (except the iPod Classic) @ 1 to 2.4 Amp Max Android Phones: Samsung Galaxy S5 S4, S3, S2, Galaxy Note 2 / Motorola Droid RAZR MAXX / HTC One X V S; All models @ 2.4 Amp Max Other Devices: GPS; PSP; Nexus 7, 10 at up to 2.4A.