This Solar Battery Charger is equipped with a charge meter which indicates how much solar energy is available, showing the approximate charge time for each different battery size. Full on sunlight is not totally necessary for to work properly, but it works faster when the sun is shining directly onto it. Overcast sky will slightly increases the time needed to recharge the batteries complete

This model with the built-in-meter charges eleven popular battery sizes including new flat prismatic batteries.
Perfect for everyday use, camping or emergencies when batteries are unavailable. And, take it anywhere because this solar battery charger is all weather resistant.