The Third Rail iPhone 4 / 4S Slim Case w/ Smart Battery Features:
Providing the ultimate 3-in-1 mobile solution, the first of its kind Third Rail System features a super slim protective case, a convenient and optional power case when needed, and a universal external charger for 100s of other devices. Contrary to bulky traditional power cases, the System lets you decide when/where/how to add on-the-go power. This may be the only mobile charger you ever need.
The Slim Case is the thinnest battery enabled case on the market
Traditional power cases add bulk, even when you don't need the extra power
Daily power use may vary and your solution should vary with it. Contrary to bulky power cases without removable batteries, with the Third Rail System you have the flexibility to add additional power only when you need it. Have another device that needs charge? The Smart Battery also doubles as a backup battery for hundreds of other devices.
An everyday protective case with a slide-on Smart Battery for extra power. View larger
Durable hard-shell protection with access to all iPhone 4/4S features. View larger
On those extra long days, don't fall victim to the limitations of ordinary power cases, the Third Rail System gives you the ability to swap on and off multiple batteries (sold separately) for longer periods away from outlets.
Share your Power
Feeling generous? The Third Rail Slim Case is compatible with all Third Rail Smart Batteries so you can easily share Smart Batteries among family, friends, and coworkers.
Durable hard-shell protection with a soft touch coating provides access to all iPhone 4/4S features. The soft touch finish also helps prevent the phone from slipping out of pockets--a major cause of lost or damaged iPhones.
Using one outlet, you can charge both your iPhone and your Smart Battery. Simply plug the included Micro-USB cord into the USB port on the Slim Case, attach a Smart Battery and charge on. You can even charge other devices (i.e. Bluetooth headset) via the USB-out on the Smart Battery using the same outlet to create the ultimate power hub.
The Smart Battery will work with all future Third Rail cases. So, as you upgrade devices, you just pick up the appropriate Third Rail Case and continue to use your Smart Batteries--good for the environment and great for your wallet.
Universal Power Solution
In addition to charging your iPhone 4/4S, the Third Rail Smart Battery also doubles as a universal charger for hundreds of other devices such as smartphones, Bluetooth headsets, MP3 players, gaming devices, and Mi-Fi Cards.
"Works with iPhone" Certification
The Third Rail System is officially certified as a "Works with iPhone" product. This ensures that 100% compatibility with your iPhone 4/4S.
What's in the Box
Third Rail Slim Case for iPhone 4/4S, Smart Battery, Micro-USB cable, USB adapter, user's manual.
Third Rail System Comparison
Easily swap on and off multiple batteries (sold separately) for longer charge periods
|Third Rail System ||Power Cases with Non-Removable Battery |
| ||Multi-use and flexible solution || ||No user flexibility |
| ||Add battery for on-the-go power || ||Cannot remove battery between uses |
| ||Battery can be used to charge hundreds of devices || ||Only charges iPhone 4/4S |
| ||Smart Batteries are compatible with all future Third Rail cases || ||Model Specific--have to scrap entire solution with each new phone purchase |
| ||Batteries can be shared with other users || ||Can't share battery with others |
| ||Fore longer use, swap dead batteries for charged ones || ||When battery dies, users are left with a useless brick |
| ||One plug power hub charging for multiple batteries and devices at once || ||No power hub capability--limited to charging only the battery and iPhone 4/4S |