I am trying to get info on what size(watts, amps, volts)solar panel I would need to keep coach batts charged. I am only able to store coach at end of street at private lot an there is no outlets. Went to use slides and could not open due to batteries at 6v vs 12v. Started motor and gen to charge and they came up to 12v. I would like to put a small solar panel on roof with suction cups to charge coach batts. The factory panel on 07 Fleetwood Revolution roof seems to be crapped out cause sure doesn't charge. What specs are needed for basic charge and do I need a battery minder to prevent over/under charge or can I elim that? I have 4 coach batteries. As always the experts are out there. Thank you.

I'm using a 15 watt panel and built-in controler to keep my TT charged up when the cover is on. I start with a full batteries however and I don't live in Illinois. We get sunshine almost every day here in SoCal.

Read this and then you know what to ask. I am not sure you will find a portable system to do what you need that you can take down when you travel.

You could also install a switch on the battery post.

Gene what is OP suppose to READ???????

I recommend a single panel about 100 watts permanently mounted plus controller.

Solar panels to keep coach batteries charged over winter

Lwiddis
Explorer II
Apr 11, 2017
I'm using a 15 watt panel and built-in controler to keep my TT charged up when the cover is on. I start with a full batteries however and I don't live in Illinois. We get sunshine almost every day here in SoCal.
MountainAir05
Explorer II
Apr 11, 2017
Read this and then you know what to ask. I am not sure you will find a portable system to do what you need that you can take down when you travel.
CA_Traveler
Explorer III
Apr 11, 2017
You could also install a switch on the battery post.
Crazy_Ray
Explorer
Apr 12, 2017
Gene what is OP suppose to READ???????
time2roll
Nomad
Apr 12, 2017
I recommend a single panel about 100 watts permanently mounted plus controller.
kohai
Explorer
Apr 12, 2017
I saw a setup where you drill a hole in the side of your trailer next to your batteries and install a 12v connector of some sort. Then your panel can plug directly into that and charge the batteries. Just unplug when you want to move. I saw another ad the other day for a solar setup that was only intended to maintain the batteries. So, they are out there.
OLYLEN
Explorer
Apr 12, 2017
I'll second the 100 watts. much below the 100 and you might as well put nothing on.

LEN
corvettekent
Explorer
Apr 12, 2017
OLYLEN wrote:
I'll second the 100 watts. much below the 100 and you might as well put nothing on.

LEN

X3
femailyetti
Explorer
Apr 12, 2017
given volts times amps is watts, then 15 be a trickle at around 1.4 amps, I vote for the 100 watts my self, with a controller. Most solar cells are not 12 volts exactly, so my math may be a little off. but you get the idea I hope.
casefarmri
Explorer
Apr 12, 2017
Thank you all for your info. From my reading I think the 100W panel and controller is the way to go. Thanks all.

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