solar panal question

[2bcs1jrt]

I saw a solar panel at a hardware store today. There was a 2w (I think) that sat on your dash to trickle charge you auto battery for $29.00 and a larger one for $79 that said 5w for RVs and boats. Are these of any use?
Cheri

[Senorsedona]

These are only good for maintaining the battery when not in use. I've heard different stories on how well they work. ?????
I have an 75W and it does a great job. I just returned today from a 4 day boondocking trip, one Wal-Mart deep cell. It never got below 3/4 charge. It rained a couple of the days, for a couple hours.

Good Luck

Jack

[2bcs1jrt]

I thought it might be too good to be true.
Thanks
Cheri