Solar Panel Fitting - HELP! - Motorhome Forums, Motorhome Discussion, Motorhome Chat

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post #1 of 8 (permalink) Old 13-09-2018, 18:24 Thread Starter
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Wink Solar Panel Fitting - HELP!

Hi all! Hope you can help! I have a 2007 Autocruise Starlet ll and want to wire in a 20w solar panel that I can use when I want to and store away when I don’t.

The wiring diagram shows the solar panel wires going INTO the management unit but there appears to be nowhere to plug the actual solar panel into.

A friend - who knows about this stuff - says that he’s been told that the place to put it is situated ‘behind the panelling’ in one of the upper cupboards and that an ‘activation code’ is required to get it going.

Apparently a ‘dealer’ will have the code but Marquis, from whom I bought the home four years ago, deny any knowledge and will only fit permanent panels.

Can anyone help me, please?

Cheers
Tuglet2
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post #2 of 8 (permalink) Old 13-09-2018, 20:10
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Just 20 watts ? Is it worth bothering for such a small panel


What is the 12v management system fitted to this motorhome ?

( some management / control systems need a code but depends on the manufacturer)

You should also be considering a regulator even for such a small panel to preven overcharging
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post #3 of 8 (permalink) Old 13-09-2018, 23:37 Thread Starter
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Thanks, trek! The panel arrived with a regulator. Not sure of the make of the 12v management system, but my pal - who built his own motorhome - came round today with all his electronic wizardry and checked that everything l’d done was tickety-boo.

He texted me about an hour later to say that he had been online and found the answers so he’s coming over on Saturday to do the biz FOR me.

He’ll probably sort it in an hour-or-so whereas l’d probably turn it into a two-day swearathon!

I’ll update on here when he’s done.

In the meantime, many thanks for your quick response. Cheers, Tuglet2
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post #4 of 8 (permalink) Old 14-09-2018, 06:41
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hi
welcome to the forum

i would have thought a 20w solar panel would be better wired directly to the battery through its controller and a fuse this would be to keep the cable lengths as short as possible

it would be possible to run it to the vans habitation panel but i think you would be better straight onto the battery because with only 20w its not practical and there would be voltage losses as the cable run is so long

so keep the cables as short as possible and use some fairly thick cable


barry
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post #5 of 8 (permalink) Old 14-09-2018, 07:33
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Hi Tuglet, and welcome to MHF

I have never let the solar electrics join up to the van electrics, seem like a recipe for disaster if it all goes T**S up

Controller to battery, panel to controller, the vans electrics will see if the battery is needing a charge etc and act accordingly.

Always connect the battery to the controller before connecting the panel.

Is your dad called Geoff by any chance
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post #6 of 8 (permalink) Old 14-09-2018, 08:54
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hi kev

basically as i said but a lot better explanation

cheers

barry
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post #7 of 8 (permalink) Old 14-09-2018, 09:03
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Quote:
Originally Posted by Pudsey_Bear View Post
Hi Tuglet, and welcome to MHF

I have never let the solar electrics join up to the van electrics, seem like a recipe for disaster if it all goes T**S up

Controller to battery, panel to controller, the vans electrics will see if the battery is needing a charge etc and act accordingly.

Always connect the battery to the controller before connecting the panel.

Is your dad called Geoff by any chance
A*se! I deny all knowledge (don't want to get hammered for maintenance!)
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I'm daft and proud of it.
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post #8 of 8 (permalink) Old 14-09-2018, 09:03
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I just responded to the OP Barry, then saw your post later glad we see it the same way.
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