A solar panel

Discussion in 'Solar Power' started by wizzer59, Aug 14, 2011.

  1. wizzer59

    wizzer59 Funster

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  2. stagman

    stagman Deleted User

    Yes that should do it ,looks ok , and price not bad but you will need a regulator ,and fixing kit .:thumb:
     
  3. robinmclaren

    robinmclaren Read Only Funster

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    i wish it was 85a , would be buying them all, i recon about 6 -7a max charge rate and probably 3-4a on a normal day , so should put around 18-48a into batteries each day dependant on time of year and intensity of light , it all depends on how much power you take out and how much battery storage you have to hold the power, we have 220a of batteries and cannot take all the charge from 300w of panels , usually fully charged back up from previous night by 10am when on hols but over 20ah from panels in sunlight
     
  4. stagman

    stagman Deleted User

    I think it's his battery that is 85amp .:thumb:
     
  5. wizzer59

    wizzer59 Funster

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    Correct:thumb:
     
  6. robinmclaren

    robinmclaren Read Only Funster

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    no thanks dont want any 85a batteries :Rofl1::Blush:
     
  7. wizzer59

    wizzer59 Funster

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    Thanks for the advice fellas, another quicky do you think its possible to stick this on the roof without drilling holes all over the place?????:Blush:
     
  8. Ralph-n-Bev

    Ralph-n-Bev Funster

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    Ralph stuck ours on with brackets and Sikaflex (sp)
    We have Trojan batteries too they are brilliant and find we dont need hook up . www.trojanbattery.com
     
  9. tonka

    tonka Funster Life Member

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    Panel looks ok and a reasonable price..
    You can get 80w panels now for £150 ish.. Check out ebay. 10amp regulator about £20.
    Ref fitting... Some 2" ali angle from B&Q £10, cut into say 4 x 5" lengths, drill 2 holes in one side of each bracket and self tap into the frame of the solar panel. Then use some SIKAFLEX 221 £8 a tube to stick it down on roof. No need to drill any holes..
    You will need some good 4mm cable from the panel down to the regulator to reduce any power loss. Connection from regulator to battery, fit a fuse !!

    NOTE IMPORTANT TIPS... Always connect the regulator to the battery first for a few minutes before you connect the solar panel.
    Also remember the panel is active and giving voltage once it's seeing any daylight. So cover with a blanket while your working on the connections..
    Good luck... DIY fitted mine 18 months ago and it's been great..
     
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  10. Road Runner

    Road Runner Read Only Funster

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    I would be looking to add another 85 amp battery.

    I have a 270 amp battery in my bus with 2 x 80 watt panels.

    On my caravan 2 x 85 amp batteries with a free standing 80 watt folding panel which on a sunny day works great.
     
  11. tonka

    tonka Funster Life Member

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  12. wizzer59

    wizzer59 Funster

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    Thanks again guys n gals:thumb: I see for the full kit its an extra £53, sound about right?
     
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  13. CHRI$

    CHRI$ Funster

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    it says in the spec 3.41 ah max output:Wink:
     
  14. wizzer59

    wizzer59 Funster

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    Hi Chris That means absolutely nothing to me:Blush: What are you saying??:helpsos:
     
  15. CHRI$

    CHRI$ Funster

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    im saying that if it was pointing at the stongest brightest sun it would produce 3.41 ah so over a 10 hour day 34.1 ah.
    on a dull day 1/2 ah.???
    p/v solar is a better option per watt:thumb:
     
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  16. tonka

    tonka Funster Life Member

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    Well spotted on the ampage, that is low for a 100w...
    Here's an 80w on ebay at £149... giving max 4.65 amp...

    http://www.ebay.co.uk/itm/80-Watt-S...20737137204?pt=UK_Gadgets&hash=item4aad6c5234

    Wizzer.. Simple example, the above panel is rated at 4.65watts per hour. But that is a very maximum. So over say 10 hours you have the possibility of getting 46.5amps of charge into your battery (4.65 x 10).. However you wont get Max and I always work on an average of 1/2 that so = 23 amps... Depending on time of year and weather it may even be less..
    Remember as well you have an 85amp battery, once it's full thats it.. So you can have the brightest hottest, longest day and get 50amp plus from your panel BUT if you battery is only part empty and only needs say 20amp then that's all it will take..
    The regulator stop or cuts down the charge once the battery is full.. If you do fit a panel then maybe consider a change of battery at same time to a 110amp.

    The 2 things to look for in a panel are PV (photovoltaic) and Moncrystalline..
     
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  17. CHRI$

    CHRI$ Funster

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    :thumb::thumb::thumb:correct:thumb:
     
  18. motorhomelover

    motorhomelover

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    do not do as i did
    Paid £600 for a 230W panel 10amp regulator and fitting
    after a few weeks it leaked in water every time it rained !
    as it had just been fitted i thought no way could it be the panel it must be the wheel holder i had had fitted well after spending another £ 300 to have the top rail seals redone along with another £300 to reseal the roof vents the rain still poured in summer 2010 it was wet and the water kept coming in I got up on the roof (not easy with a spinal injury) i found the cause of the leak was the solar panel fitting i replaced all the fittings and resealed and have had no more water ingress
    if you want the name of the poor solar provider just PM me would not want others to have the same ripoff done to them Yours Ian

    :thumb:
     
  19. Reallyretired

    Reallyretired Funster

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    Seems odd, a 230w panel would require a 20amp regulator, I don't think a 10amp would be enough as a 230watt panel should give nearly 15amp in ideal conditions. The biggest single panel I have seen is 120w, are you sure it is 230watt ?
     
  20. pappajohn

    pappajohn Funster Life Member

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    mines a single 170w panel...around 2mtr x 1mtr (maybre slightly less)
     
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