What do I need to use a solar panel to charge a deep cycle battery?

I am looking at buying a 45 watt solar panel and a deep cycle 12 volt battery. I will be using the battery to run D/C lights, so I don't need a A/C power inverter. Do I need to get anything special to hook up between the solar panel to the battery to charge it, or do I just run the wires from the solar panel... show more I am looking at buying a 45 watt solar panel and a deep cycle 12 volt battery. I will be using the battery to run D/C lights, so I don't need a A/C power inverter. Do I need to get anything special to hook up between the solar panel to the battery to charge it, or do I just run the wires from the solar panel to the battery?
Thanks
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