This Solar e Charger with built-in Li-ion battery can support anything up to 3 watts. Also includes four extra adapters, making this unit perfect for nearly any phone. Recharges mobile electronics via sun; Built-in Li-ion battery fully recharges in 5-8 hours via sun; Recharges battery in 2-3 hours via AC adapter; Indicator lights when unit is ready to deliver power (either from DC or solar) and when batteries are charged; Uses superior monocrystalline solar cells; DC Output settings: 4.5 V, 5.4 V, 6.4 V, 9.0 V; (2x) USB outputs; Included accessories: AC & DC chargers, cell phone tips.