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Solar top-up for battery

Helifella Nov 1, 2013

  1. Helifella

    Helifella Co-Driver ~ Hattie Staff Member Moderator Regional Rep VCDS Map User

    Hi all,

    Have any of you used a solar panel to keep your battery in good condition whilst it's not being driven?

    I have a 12W 17.5V panel suitable for 12v applications available which can connect either via the ciggy socket or directly onto the terminals. It also has a diode to prevent battery discharge during the night.

    The question I have is whether the car will allow the solar panel to push the power into the battery via the ciggy socket (always live, not ignition switched) being such a complex car?

    If I connect directly to the battery I would need to lift the bonnet, disconnect etc before each drive, whereas via the ciggy socket I can jump in and unplug it prior to starting up and go.

    By using a solar panel it should also keep my battery voltage above the cut-off threshold of my camera system thus allowing the camera to stay in parking mode for extended periods ie when I leave the car parked up while working away.
  2. OCD-A3

    OCD-A3 Member

    I can't think of any reason why it wouldn't. The panel won't even come close to the fuse's max rating. You should be fine.

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