Note that i Phone 3G and i Phone 3GS cannot be charged with a Fire Wire power adapter or Fire Wire-based car charger.
After it’s removed from storage, it may require 20 minutes of charging with the original adapter before you can use it.
There are two simple ways you can preserve battery life — no matter how you use your device: adjust your screen brightness and use Wi-Fi.
Charging the device in high ambient temperatures can damage it further.
Software may limit charging above 80% when the recommended battery temperatures are exceeded.
If your i Pod is connected to a computer that’s turned off or is in sleep or standby mode, the i Pod battery may drain.
Always make sure your Mac Book is using the latest version of mac OS.
“Battery life” is the amount of time your device runs before it needs to be recharged.
“Battery lifespan” is the amount of time your battery lasts until it needs to be replaced.
It’s especially important to avoid exposing your device to ambient temperatures higher than 95° F (35° C), which can permanently damage battery capacity.
That is, your battery won’t power your device as long on a given charge.
Dim the screen or turn on Auto-Brightness to extend battery life.