This is a portable solar panel that charges up to become a separate battery ready to plug in and recharge items such as a mobile phone, PDA or MP3 player. The advantage of this approach is clear: the Freeloader can be left outside somewhere safe and bathed in sunlight while you go off and do your daily routine. Once charged, it's ready for use whatever the weather. The unit can also be charged from a computer's USB port, for which a cable is supplied. Hooking up a phone or music player is quite simply a matter of connecting one of the many bundled adaptors to the Freeloader.