Apple has made constant improvements to the battery life of the iPod since releasing it in 2001, and the modern iPod classic has the ability to last up to 36 hours on a single charge. However, this is a best case scenario, and you have the ability to reduce the battery life by as much as 84 percent by using the iPod in a way that increases the draw on the battery. Writer Bio

Why Does My iPod Run Out of Battery So Fast  - 89