10 Ways to Hack Your Car Interior

Tablet computer and smartphones are replacing paper maps and directories, which is great, except that iPads and iPhones gulp down battery power on a long trip. Most cars have just one USB power point for recharging your gizmos, and that's not going to be enough for a 12-hour road trip, or if you have a carload of people playing Angry Birds.

You can, however, add two additional (and more powerful) USB points to a cigarette lighter socket. Sporty's Pilot Shop sells a plug-in unit with two 2.1-amp USB outlets, enough to charge even Apple's power-hungry iPad. Cigarette lighter sockets can handle more than 10 amps, so this is a convenient way to make sure your camera, video game, MP3 player, and tablet computer stay charged during hours on the road.

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