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Thread: OPUS ATX/M4-ATX - ignition on/off detection if attached to secondary battery?

  1. #1
    Constant Bitrate doncarbone's Avatar
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    OPUS ATX/M4-ATX - ignition on/off detection if attached to secondary battery?

    I have a Kinetik HC1400 as my starter battery and a HC800 in the trunk. The two batteries are separated by an isolator.

    If I choose to attach my PSU to the secondary battery in the trunk, will the PSU not operate according to whether the ignition is turned on/off?

    Is there a way around this, or am I just going to have to hook this up to my starter battery?

    Thanks

  2. #2
    MySQL Error soundman98's Avatar
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    the ignition position is a key-position, not a battery location.

    so no matter which battery you connect the main power for the psu to, it is the status of +12v on the 'acc/ign' line that determines when the psu shuts down.

  3. #3
    Constant Bitrate doncarbone's Avatar
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    does the PSU connect somewhere to this line for it to be able to sense the key-position?

  4. #4
    Maximum Bitrate kegobeer's Avatar
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    Yes, every intelligent power supply has a wire that connects to your ign wire.

  5. #5
    Constant Bitrate doncarbone's Avatar
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    Quote Originally Posted by kegobeer View Post
    Yes, every intelligent power supply has a wire that connects to your ign wire.
    sorry to be a bother, but how can i locate this wire...am i having to solder the PSU connector wire onto this somehow, or do most cars come with a plug of sorts i connect to wire to? is there a tutorial or explanation on how to do this properly/safely? it seems like a risky thing to be toying with if you don't know what you're doing....

  6. #6
    Neither darque nor pervert DarquePervert's Avatar
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    Search for a wiring harness diagram for your ride: http://www.the12volt.com

    And you don't need the actual ignition wire. Any ignition-controlled line will work. I use the line from a cigarette lighter power, since those are ignition-controlled in my vehicle. You may also have ignition-controlled lines in you fuse box with nothing on them. Add a fuse and use that.
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

  7. #7
    Constant Bitrate doncarbone's Avatar
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    Quote Originally Posted by DarquePervert View Post
    Search for a wiring harness diagram for your ride: http://www.the12volt.com

    And you don't need the actual ignition wire. Any ignition-controlled line will work. I use the line from a cigarette lighter power, since those are ignition-controlled in my vehicle. You may also have ignition-controlled lines in you fuse box with nothing on them. Add a fuse and use that.
    thank you!

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