Maxell P-2 2-G Rechargeable Back-Up Battery Pack
While there are available extra battery packs for your iPod, most of them need to be recharged via an electric power outlet when spent. Thus, if you are on an extended road trip or perhaps camping in the woods for days, your extra battery pack may also run low. The Maxell P-2 2-G Rechargeable Back-Up Battery Pack gets around this problem by using four size AA batteries.
These batteries can be either the rechargeable secondary or disposable primary types that can provide power to your iPod for an additional 15 to 20 hours of playing time. If you plan on being away from sources of electric power for longer than that, you can bring along extra primary batteries. If the LED monitor displaying battery power level indicates that your battery is ready to die, you only need to insert fresh batteries into the pack for more hours of music.
The Maxell battery pack can be connected with the iPod Mini, Nano, 3G, 4G, and 5G video through their 30-pin dock connector. It also includes a clip that securely holds 4th generation iPods. For hands-free listening, this clip can be attached to your belt.