10 - English Setup Connecting to AC power Before using your Bose Â® SoundLink Â® Mini speaker the first time, connect it to AC (mains) power and charge the battery. You can connect the power supply cord into the charging cradle, or directly into the speaker. While the battery is charging, you can begin using the speaker.
Ann is completely right. Given the alternative energy aspect of solar lights it seems a bit funny to have them charged by electrical lighting. Given enough direct and reflected sunlight in a room, they could be charged indoors. The stored charge wouldn't be as efficient as if they were in full sunlight though.
Solar Light Batteries. Solar light batteries are a part of every outdoor solar light. When the solar cell creates electricity from the sun during the day, the energy must be stored somewhere. The battery is the perfect place to hold the energy until dusk, when the light needs the energy to shine. The solar cell is wired to the battery with a diode, which keeps the energy flowing one way.