... battery through included wall AC adapter,USB data line,or solar energy SOLAR CHARGER specification 1.Solar cell:Power 0.65W,voltage 5V2.Charge ... cameras,DV,MP3,Mp4,and so on.*Wide applicability.The solar charger can charge different types of digital products since its ... wall AC adapter, and around 8-10 hours when using solar energy and under direct sunlight.*How long will it extend ...