POWERPACK Original Portable Hybrid Solar Charger, Neon Pink, Small Built- in rechargeable lithium polymer battery: 1200mah/3.7v. solar energy board: dc5.0 v/80ma. input voltage: dc5.0v-5.5v input current: 450ma max. cycle life: greater than 500 times. Weight: 2.8 oz / 80 grams dimentions (mm): 114.5 x 101 x 17