Whether you’re running or relaxing, you want your iPod to go the distance. Follow these tips from touchtip.com to increase your iPod or iPhone battery life (more on the site):
Adjust brightness
Dimming your phone’s screen is another way to extend battery life. Go to Settings > Brightness and drag the slider to the left to lower the default screen brightness. Turning the Auto-Brightness allows your phone screen to adjust its brightness based on current lighting conditions. Go to Settings > Brightness and set Auto-Brightness to On.
Turn off Wi-Fi
If you rarely use Wi-Fi, you can turn it off to save power. Go to Settings > Wi-Fi and set Wi-Fi to off. If you frequently use your iPhone to browse the web, battery life may be improved using Wi-Fi instead of EDGE.
Turn off Bluetooth
If you rarely use a Bluetooth headset or car kit, you can turn off Bluetooth to save power. Go to Settings > General > Bluetooth and set Bluetooth to Off.
Photo CC 2.0, Ayton