Connect SOLAR CHARGER directly to battery ?

Discussion in 'General Motoring' started by Rob Tom, Nov 25, 2003.

  1. Rob Tom

    Rob Tom Guest

    I have a 240 in which I'd like to use a
    photovoltaic module to keep the battery
    charged up in winter.

    The module is supposed to plug into the
    car's cigarette lighter but apparently,
    Volvo lighters are live only when the
    ignition is turned on.

    I'm wondering if I can run two wires
    directly from the battery to the PV module
    , perhaps with an in-line switch and/or a
    fuse ?

    Or is there an easier way ?

    (Obviously I'm not very electrically-
    savvy, so your assistance is greatly
    appreciated).



    === * ===
    Rob Tom
    Kanata, Ontario, Canada
    (take the spamguard-dogs out of my edress
    in your reply)
     
    Rob Tom, Nov 25, 2003
    #1
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  2. Rob Tom

    Peter Milnes Guest

    That should be fine but check first that ignition is needed for the cigar
    lighter. It is not usual for ignition to be on before cigar lighter works in
    Europe/UK.

    Cheers, Peter.

    : I have a 240 in which I'd like to use a
    : photovoltaic module to keep the battery
    : charged up in winter.
    :
    : The module is supposed to plug into the
    : car's cigarette lighter but apparently,
    : Volvo lighters are live only when the
    : ignition is turned on.
    :
    : I'm wondering if I can run two wires
    : directly from the battery to the PV module
    : , perhaps with an in-line switch and/or a
    : fuse ?
    :
    : Or is there an easier way ?
    :
    : (Obviously I'm not very electrically-
    : savvy, so your assistance is greatly
    : appreciated).
    :
    :
    :
    : === * ===
    : Rob Tom
    : Kanata, Ontario, Canada
    : (take the spamguard-dogs out of my edress
    : in your reply)
    :
    :
     
    Peter Milnes, Nov 26, 2003
    #2
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  3. [Peter Milnes] (Wed, 26 Nov 2003 01:51:59 +0000 (UTC)):
    Did you even read the post?
     
    Svein Tore Sølvik, Nov 26, 2003
    #3
  4. Rob Tom

    Peter Milnes Guest

    Why are you asking, don't you understand English? I know that the question was
    about connecting a solar panel to the battery and have had an acknowledgement
    from the original poster (in Canada). So why are you reading answers and jumping
    to the wrong conclusion? I am not being rude just trying to see where you are
    coming from.

    Cheers, Peter.

    : [Peter Milnes] (Wed, 26 Nov 2003 01:51:59 +0000 (UTC)):
    :
    : >That should be fine but check first that ignition is needed for the cigar
    : >lighter. It is not usual for ignition to be on before cigar lighter works in
    : >Europe/UK.
    : >
    : Did you even read the post?
    : --
    : Svein Tore Sølvik
    : 1996 Volvo 850 2,5 20v
     
    Peter Milnes, Nov 26, 2003
    #4
  5. [Peter Milnes] (Wed, 26 Nov 2003 23:40:29 +0000 (UTC)):
    Well, darn, it seems like I didn't read your post good enough. Sorry ;)

    Thought you answered that the ignition needed to be on, when you actually
    said quite the contrary :D (or at least to check)

    Time for reading-glasses I guess :/
     
    Svein Tore Sølvik, Nov 27, 2003
    #5
  6. Rob Tom

    Rob Tom Guest

    Well Svein and Peter, I think that both of
    you may need glasses.
    [Insert WINKING SMILEY]

    Of course, the first thing that I did was
    to check to see whether the cigar lighter
    worked with the ignition OFF. Life would
    have been a lot simpler if it did, but it
    doesn't.

    Volvos are peculiar (unique ?), in that
    their ignitions need to be "on" in order
    to energise the lighter, or at least that
    has been the case with the two that I've
    owned.)

    === * ===
    Rob Tom
    Kanata, Ontario, Canada
    (take the spamguard-dogs out of my edress
    in your reply)


    understand English? I know that the
    question was
    your post good enough. Sorry ;)
    needed to be on, when you actually
    ignition to be on before cigar lighter
    works in
     
    Rob Tom, Nov 27, 2003
    #6
  7. Rob Tom

    Mark Seeley Guest

    As Peter pointed out, it is always worth checking... My 440 had power to the
    lighter and radio all the time... however in my 740, the ignition needed to
    be on. If it's a problem, I can't imagine it'd be too difficult to get the
    lighter socket to bypass the ignition - would help if you want to regularly
    charge the battery from the solar panel.

    Mark
     
    Mark Seeley, Nov 28, 2003
    #7
  8. Rob Tom

    mrhuntnpeck Guest

    the liighter will get it's power from one of the fuses.
    look in the fusebox and there is probably a label to tell you which
    one. if not it should be listed on the schematiic in the haines manual
    or bently or whatever one you have access to. if you don't have a
    manual or don't know just take them out one by one till the lighter
    doesen't work any more.

    it might help if you have a light that you can plug into the lighter
    so you don't have to keep burning your finger when you check:)

    so turn the key on when you are checking. temporrily unplug the ding
    ding ding'er if it drives you nuts. be careful not to short anything
    out .

    with the fuse out there will be power on one side of that fuse you
    have out. the other side wll be dead because the fuse is out.

    to check for power use a 12 Volt light bulb or a multimeter.
    you are checking between anything that is connected to the body of the
    car ( ground) and the point you are testing.

    so on the side of the fuse socket where there is power, that side is
    unprotected by the fuse.

    The other side , the side with no power is the terminal where your
    lighter is connected. there will be more than one wire connected here
    because that fuse also probably also protects the wiire to other
    things.

    eliminate the one that connects to the lighter by unplugging one a a
    time. now you have the wire to the lighter.

    Now turn the key off

    with the key off check on the unprotected side of the fusebox for a
    wire that is hot.
    I would pick the one that has the thickest wires there just so you are
    sure the wire that is supplying the lighter's power is large enough in
    diameter to handle the lighter's current.

    now all you need to do is hook a fuse across these two points.

    you can buy a inline fuse and socket from radio shack or somewhere
    like that. I would try to use a 10 amp fuse, I just guessed at the
    size. you might need a 15 if the lighter blows the fuse, look into
    that later if it is a problem.

    tie the wires up neatly and make sure that nothing is routed where it
    can ground out be especially carefull of this on the unprotected side
    of the fusebox.

    you don't need to take the dash apart looking for the lighter.


    That's my 2 cents (canadian) worth, good luck !

    Phil
     
    mrhuntnpeck, Nov 28, 2003
    #8
  9. Rob Tom

    Stuart Gray Guest

    The back of the plastic surround for the ashtray usually has the fuse
    numbers and what is on the circuit marked.

    Stuart
     
    Stuart Gray, Nov 29, 2003
    #9
  10. Rob Tom

    Rob Tom Guest

    Thanks guys (with extra thanks to Mr. H&P
    for assistance above and beyond the call
    of UseNet duty).

    I wrote to the PV module manufacturer (ICP
    Global) this morning and surprisingly, one
    of their techs wrote back within the hour
    (!) with a detailed response offering two
    options (I chose the easiest one), so this
    evening, I went to Canadian Tire and
    bought a clamp-on "power adapter" (cheap,
    $5.95) which includes a female socket
    (into which the PV module will plug),
    wired with an in-line fuse and clamps for
    each battery terminal.

    Bring on the cold weather!



    probably a label to tell you which
    schematiic in the haines manual
    checking. temporrily unplug the ding
    is connected to the body of the
    unprotected side of the fusebox for a
    thickest wires there just so you are
    lighter's power is large enough in
    that nothing is routed where it
    === * ===
    Rob Tom
    Kanata, Ontario, Canada
    (take the spamguard-dogs out of my edress
    in your reply)
     
    Rob Tom, Nov 29, 2003
    #10
  11. Rob Tom

    El Mecky Guest

    Finally!

    I never heard so many people argue over so many things you didn't ask for.
    Good thing god invented newsgroups. Can't imagine what would happen if all
    these people went into politics!

    And no, there is nothing wrong with my ignition, neither on or of. I had a
    question though about rims, but am affraid I'd get about 20 replies on
    braking system and wheelbolts.
     
    El Mecky, Nov 29, 2003
    #11
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