Although the Apple iPod battery has consistently improved through every new iteration, you're still going to run into a scenario where you wished you had more power. That's where the iCel Portable Power Supply comes in. Connect the iCel to your iPod and you can enjoy between 50 to 200 hours of extra battery life. (of course there's no guarantee that you'll enjoy the music like the woman is in the picture).

The iCel is available in three models, the iCel 201 is available for $99, the 202 for $149 and the 205 for $199. Check out the Product Page for additional information. Via DAPreview.