By David Wallace

Between your phone, PDA, MP3 player, game devices and other accessories, chances are even the most intrepid travelers don't leave home without a recharging plan. Some new technologies and products are making it easier to top up devices on-the-go.

One creative option is a new recharger that uses the audio from a plane's in-flight entertainment system to generate electricity. Inflight Power sells a small, square device that plugs into the headset jack and turns the loudest audio output into a 5-volt DC charge for games and media players. The $35 device has had mixed results in reviews and requires two AAA batteries. It can takes three times longer to recharge an iPod than a typical plug, but will continue to charge a device while it's being used, says Dr. Tom Gianulli, Inflight Power's creator.

If you're taking a computer, just pack a USB recharging cord that will draw a small current from your computer and refill accessories. Many cell phones now have a USB connection for this purpose, so check your favorite retail stores for the right cord. Energizer offers battery rechargers that use computer power or a wall outlet to reload AA and AAA batteries. The device has an on-screen guide that shows the battery's charge level. Other options include power from a car's outlet to refuel batteries and devices.

Manufacturers such as Plantronics sell accessories to recharge headsets using conventional batteries—others are available for phones, games, even a crank-operated combination flashlight and phone recharger. So you always have a source of electricity.