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Reload Thread: Need help Maintaining presets on a hot rod with a battery cut-off

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    Need help Maintaining presets on a hot rod with a battery cut-off

    I have a hot rod that is equipped with a battery cut-off switch. This switch is turned off every time the vehicle is put away. It is designed to completely cut off all power runnning throughout the vehicle.

    Problem is that all the presets on my head unit are erased each time. I would rather not have a hot wire running direct to the battery to maintain the presets and wondering if there is a work around for this. Installing a 9 volt battery inline somehow for example?

    Thanks for any ideas.







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    Re: Need help Maintaining presets on a hot rod with a battery cut-off

    Explain why you have to cut the battery off.




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    Re: Need help Maintaining presets on a hot rod with a battery cut-off

    Quote Originally Posted by DEAFWISH View Post
    Explain why you have to cut the battery off.
    Leaving a battery hooked up to a stored vehicle is not good for the battery due to parasitic loads. Even a few mA of draw over 100 days can drain a battery down well past dead.



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    Re: Need help Maintaining presets on a hot rod with a battery cut-off

    Get a seperate AGM battery for the stereo



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    Re: Need help Maintaining presets on a hot rod with a battery cut-off

    Quote Originally Posted by Vossy View Post
    Get a seperate AGM battery for the stereo
    not really necessary, I've seen a couple H.U.'s the come with a 9 volt battery just for that so I'm sure there's something out there.



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    Re: Need help Maintaining presets on a hot rod with a battery cut-off

    Thanks for the replies. As a note, this is a very lightweight vehicle with space constraints. Large 2nd battery not an option. Gotta be a way to rig a 9 volt in the line safely????




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    Re: Need help Maintaining presets on a hot rod with a battery cut-off

    Why 9 volt? That might not even work. 8 double A batteries could make 12 volts. But I don't know how long they could store information for.

    Also, the battery cutoff is REQUIRED in some types of drag racing. Actually, it can be required to be on the outside of the vehicle in some cases.

    Your best bet is to either not flip the cutoff switch, or just grab a pen and paper, then write down all your settings.



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    Re: Need help Maintaining presets on a hot rod with a battery cut-off

    why not get a battery tender?



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    Re: Need help Maintaining presets on a hot rod with a battery cut-off

    Quote Originally Posted by SpeedEuphoria View Post
    why not get a battery tender?
    This.



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