Smallest Solar Panel

Will a 5 watt Solar Panel charge my boat battery?
I have a trolling motor on my boat, would a small 5 Watt Solar Panel recharge the battery over a few days, and is there a danger of over charging,
ok for a 12v standard(not deepcycle) yea sure i use them all the time to make sure that my toys fire up
with a deep cycle or larger batt you may have to step up. Contact a rv place they sell larger ones for different batteries
the things have a regulatior that limits the voltage once the batteries are charged and prevents overcharging
i would still ask about it if you need to step up with a deep cycle or something though
goodluck