Solar Charge Leisure Battery Via 12v Cigarette Socket?

Discussion in 'Solar Power' started by pengy, May 1, 2015.

  1. pengy

    pengy Funster

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    Hi,

    I have a 2006 Adria Twin, which I'm really happy with - but (isn't there always one of those) the leisure battery is in a tiny cupboard. No problem there until I started thinking about solar panels, not the permanent fixed on the roof kind, but the small portable ones that are sold with crocodile clips to attach to the battery. Absolutely no way is it possible to get at the battery terminals easily enough to do that! Then I saw some panels that charged via a 12v socket. The van has a hela socket in the kitchen area which is live all the time.

    A seller has assured me it's perfectly safe to attach a small portable solar panel in this way (20w), but I'm not sure. The power would have to go through the Electroblok and I really don't want to damage that! The panel would have a regulator fitted.

    Has anyone any thoughts on this? I would appreciate comments/observation? Am I just being over cautious?

    Many thanks

    Yvonne (masquerading as a penguin)
     
  2. pappajohn

    pappajohn Funster Life Member

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    To be honest, i wouldnt bother.

    20watts equates to 1.5amps but it will be hard pressed to produce 1amp in very bright overhead sunshine....and the sun aint that high for long so you may get 4 or 5 amps in a full summers day, dawn to dusk...if it shines all day.
     
  3. Baldeagle7470

    Baldeagle7470 Funster

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    I have one of the small suitcase type solar panels,it came with crocodile clips and a cig lighter plug,which I always use.
    My van is 2000 without any complicated electronics but I cannot speak about newer models.
    I sometimes sadly due to injury leave my van for several months with just the little panel left on the dash.It has always started fine!
    Up till now that is haha.
    Cheap enough to try maybe.
     
  4. pengy

    pengy Funster

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    Thanks for your thoughts. I have been wondering whether just to get a solar charger for my phone and a solar lantern! Then the leisure battery would just have to power the water pump.

    Any idea how long I would have to drive for to get the 4 to 5 amps to the leisure battery? I very rarely stay more than 3 nights without moving!

    Thanks
     
  5. flatpackchicken

    flatpackchicken Funster Life Member

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    Always charge phone/computer and anything else whilst you are driving to next location if possible, I use a double 12v socket and always charge my comp and strip light and anything else that needs charging when driving, thus all charged up and full leisure battery's when I stop as well, although no good if things need charging whilst you are parked up, maybe better idea to get a 2nd battery linked up so you always have plenty of power between stops and a fixed solar panel on the roof so you always have some sort of charge coming in.
    Regards Garry Flatpackchicken
     
  6. Reallyretired

    Reallyretired Funster

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    Probably take an hour or two, but with a b2b charger running the engine for 15mins would do it.
    If you don't want to get a proper solar panel (100w+) then I suggest a b2b charger would be your best bet and it can also charge in the dark.
     
  7. pengy

    pengy Funster

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    Thanks for people's thoughts. It has given me other routes to consider so I think I'll be spending some time with Professor Google, and of course reading more threads here!
     
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