solar panel

Discussion in 'Motorhome Chat' started by angusboy, Mar 1, 2015.

  1. angusboy

    angusboy Funster

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    Hi what sort of cost am I looking at to run 2x110 amp batteries by solar panel regards steve
     
  2. tonka

    tonka Funster Life Member

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    The question does not really make sense...
    A solar panel will produce whatever it can depending on weather and it's output design. The batteries will store whatever they can until they are full..
    First thing is see what roof space you have available, then depending on the size of your wallet fit what you can afford or want to spend..

    I have just bought a 120w panel for £82... My Autotrail has a built in solar regulator that will take 120w, so an easy match.. Have 2x 110amp batts fitted...
     
  3. pappajohn

    pappajohn Funster Life Member

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    To charge purely by solar......not worth it, you can't rely on the sun shining or for how long.
    You really need another charge source as well.
     
  4. angusboy

    angusboy Funster

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    Thanks
     
  5. tonka

    tonka Funster Life Member

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    @stephen harwood what motorhome do you have ???
    As I mentioned above some have built in regulators so you could add a first panel at quite reasonable cost...
     
  6. pappajohn

    pappajohn Funster Life Member

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    As a guide....

    Batteries £100 each.
    Solar panel £80 > £100
    Regulator £30

    Labour...who can say
     
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  7. angusboy

    angusboy Funster

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    Bessacar e745 just bought 2 new batteries thanks
     
  8. angusboy

    angusboy Funster

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    Thanks john
     
  9. Drexxer

    Drexxer Funster

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    Hi, if you don't mind me asking what make / size is the panel as I'm thinking of upgrading mine

    Andy
     
  10. pappajohn

    pappajohn Funster Life Member

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  11. tonka

    tonka Funster Life Member

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    This is the one, I put an offer of £82 and it was accepted straight away. Only came the other day so not fitted / tested yet.
    I only noticed after the buy button that its a "poly crystal" where as in the past I have always bought "Mono". In reality I dont think there will be much difference, both types have their pro's and Con's.
    http://www.ebay.co.uk/itm/NEW-120W-...968?pt=LH_DefaultDomain_3&hash=item41915ff030
     
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  12. pappajohn

    pappajohn Funster Life Member

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    Polychrystalline is about 70% of the efficiency of monochrystalline.

    I believe poly is a man made chrystal whereas mono is a natural chrystal.
     
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  13. angusboy

    angusboy Funster

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    Thanks tonka
     
  14. Vlad The Impaler

    Vlad The Impaler

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    In my experience not true ,I have 180 watts on my roof and 2 110 amp batteries ,I have led lights and a 12 v tv and games machine I also charge my phones and tablets via 12 v leads.
    When you drive to your destination your putting charge in and unless your a heavy power user the above set up will be more than enough for a leisure camper .It. would not however suit long camping off grid in the middle of winter,in summer you'd never come near to running low.
    As far as costs goes you can get a couple of panels and a regulator off ebay with all the bits and bobs for under £200 .It is an easy DIY job however if your not sure for a case of beer I'm sure you could tempt a handy Funster to help you




    Vlad
     
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  15. pappajohn

    pappajohn Funster Life Member

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    And if the sun doesn't shine for 4 or 5 days.....not unusual in the UK.

    I would still want a backup charge source or I could be sat in the dark.
     
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  16. NickNic

    NickNic Funster Life Member

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    Ours seems to cope OK. We have 200W and 2x110ah. This winter we've been off grid a lot and never had any problems.
     
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  17. Vlad The Impaler

    Vlad The Impaler

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    Pappajohn A man of your experience should know that two good 110 amp batteries could last 4 or 5 days or longer without any input from solar.
    Also the sun doesn't have to be out 24 /7 We camp in Scotland in the summer and may not see the sun for a good few days but always have full charge by mid morning!




    Vlad
     
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  18. angusboy

    angusboy Funster

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    Would gladly buy crate of beer any offers?
     
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  19. tonka

    tonka Funster Life Member

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    Steve, there is plenty of info already in the solar section about DIY fitting...
    You can even ask here as you go along... If you can use a drill, apply sealant and connect a few wires you are sorted..

    Using the drill through your roof for the first time is the killer !!!!!!!!!!!!!!!!! o_O
     
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  20. angusboy

    angusboy Funster

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    Thanks mate
     
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