Tenergy USB-5000 Hybrid Solar Charger for Mobile phone, iPod/MP3 Player, PDA, Game Player, GPS and Digital Camera Recharge 2 pieces of AA NiMH rechargeable batteries from SUN POWER or digital devices with USB port. Power up your digital devices from 2 AA batteries in emergency Designed for most popular brand of mobile phones, iPods, MP3/MP4 players and portable games devices. Ultra compact and light. Dual color indicator.