... , red, purple, black and others. 4.Battery type: Lithium-battery 5v 500ma universal portable power bank for smartphone,psp, gps, camera,mp3,mp4,pda/Parameter ... ---Battery type, Lithium-battery---Working temperature: -10°C to 40°C---Storage temperature: -20°C to +50°C---Cycle Life >500 times---With ...