Emergency power for your mobile phone

Here is a collection of alternate power sources for your mobile phone which can help in cases of emergency. The device in the first pic connects your phone to your computer's USB connection and draws power from there. It comes with all many different types of connectors to suit your mobile phone. In the second and third pic, there is a very simple idea put into use. It simply connects a standard AA battery to your phone. The last two pics are just an external battery that can be connected to your phone to power it. If these gizmos aren't to your liking, there are those solar panel chargers and the crank chargers.