It depends on the battery capacity, what you intend to power from the battery/outlet, for how long, and for what part of the day.hi all what I would like to no is could I charge a 12v battery with this an then use a converter to power a light an maybe a plug in my garage ?
Boosting the voltage doesn't come for free. The solar panel provides 300mA. You'd be better off putting two of them in series; you won't be able to hurt a reasonable sized lead acid battery with 300mA. It's also unlikely that it will support a load of any significant size.I guessing that is a dc-dc booster ?