OPTI-UPS SCS001 Solar Powered Multi-Purpose Battery Charger Solar panel charges the on-board battery, which recharges your equipment Charging current for mobile phones: 100-250mA Output voltage: 5.7V, 7.6V and 9.8V Solar power charges the 1100mAh internal battery in approximately 8 hours On-board flashlight provides up to 40 hours of light on a single solar charge