TuneJuice offers battery boost to iPod, iPod mini

Griffin Technology Inc. on Friday announced it is shipping TuneJuice, a battery backup for Apple's iPod and iPod mini using a single 9-volt battery. The device is designed to work with any iPod that features a Dock Connector -- that is, any third- or fourth-generation iPod, any iPod mini or any iPod photo. It is available for US$19.99.

TuneJuice provides up to 8 hours of additional power if your iPod's own battery has any charge left. An iPod that's been completely drained will work for another four hours, according to Griffin. The TuneJuice is molded in white to match the iPod's color.