At what temperature does the iPods battery work best?
Generally, you can use iPod anywhere between 0 degrees to 35 degrees Celsius (about 32 degrees to 95 degrees Fahrenheit). However, if you want to prolong your battery’s life, iPod works best at room temperature, near 20 degrees Celsius. If you have left iPod in the cold, let it warm up to room temperature before waking it from sleep. Otherwise, a low-battery icon may appear and iPod will not wake from sleep. If after warming up, iPod does not wake from sleep, connect the power adapter, and press Menu and Play/Pause buttons until the Apple logo appears.