Before the iPad was released, many experts were questioning whether such a device would catch fire without a decent battery. As it turned out, Apple did go all in and created a device that can go without a recharge for hours (almost more than any laptop battery. Griffin Technology PowerJolt: a very safe solution to use in your car that charges upyour device and does not damage your lighter outlet or your vehicle's battery. Digitunes Dual charger with dual USB: a travel solution that is quite compact and can be taken for trips without getting in your way. If you spend a lot of time on planes, you are going to need one of these. CrazyOnDigital Apple iPad: a budget Car power adapter for your tablet. It is not too fancy, but it does power up your device in your vehicle.
You do not want to forget about the official adapter that you get with your tablet. That's probably the safest solutions for air travel and beyond. The above car solutions do get you out of trouble when you don't have access to an outlet.
Travel Charger
4 Best iPad Chargers for TravelThanks To : Hand & Nails Repair Cream-Lotion Wireless Stereo Noise Cancelling HeadSet Bluetooth USB Wireless N Network Adapter Kit