Solar Electric Boat So I Have A Solar Power Battery Charging Question...?

So i have a solar power battery charging question...? - solar electric boat

I think that would be the best way to explain what I do .. Looking to buy a small boat and power an electric motor to move. I'm pretty sure they use a 12V battery for power. Now I want to do want is a plug solar panel loaded on the ship contantly ship.

So now I have some questions ..

1.Will work regular car battery? or do I need a deep cycle battery?

2. How big is the solar panel that I must be about 20 hours to load and I intend to use the boat every day, or if you never say a battery used in one day that only 50%, or whatever I note the purchase of the Panel to keep the battery charged on a daily basis?

3. Is it possible to connect the solar panel, while using the battery?

Basically I'm looking for a simple configuration supplying cheap as possible, I will not have to worry about recharging the battery