Powertraveller Motormonkey - $29.99

Convenient on-the-go charger that supports mobile phones, MP3/MP4 players, PDAs and handheld game consoles. Automatic shut-off feature for when your device is fully charged. Integrated charging intelligence will not drain car battery. Works in 12-volt and 24-volt outlets. iPhone and iPad adapters not included.Dimensions: 5.35H x 4.21W x 3.94D.Weight: 1.41 oz. - $29.99