The Freeloader Solar Charger is an advanced portable charging system that can power any hand held device anywhere, anytime. Freeloader takes power from its solar panels or via a supplied charge cable that plugs into a computer's USB (Universal Serial Bus). Once charged, Freeloader's internal battery can power an iPod for 18hours, a mobile phone for 44 hours, PSP for 2.5 hours a PDA for 22 hours & much much more.