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Thread: Flat Battery with M1-ATX and new firmware

  1. #1
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    Flat Battery with M1-ATX and new firmware

    I was testing out the system in the car yesterday. I had it connected less than an hour, and when i went to start the car - it wouldnt.

    For testing i had the M1 12v constant and switched connected direct to battery (at my amp). Could this have anything to do with it, or is there a problem with the low battery monitoring on the M1?

    How long should i beable to run it without the battery going flat? My battery is quite old but i think it is still in good condition. I often watch watch a full dvd on my current system (indash pioneer, 2 JL 12" subs, 2 amps) with the engine off and no battery problems.

    This happened once before with the old firmware, so i thot this would have been fixed but obvously not.

  2. #2
    Maximum Bitrate neon_eddy's Avatar
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    did you add the jumper(s) to it.. with no jumpers it acts as a dumb PSU .. and I think will still suck power till it's dry..
    Shawn



    Check out my web company Minneapolis Web Designer | MODx Web Design - Himmelberger Design


  3. #3
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    Yeah, ive got the jumper in the default setting - 5 sec delay, 2 hour hardoff.

    Also, am i right that having both constant and switched 12v wires connected to battery should not affect the battery monitoring?

  4. #4
    Maximum Bitrate neon_eddy's Avatar
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    it may .. I think if you have the switched line on al lthe time it assumes your key is on and it's running.. the switched line should only come on with ignition..

    IMHO

    my $.02 keep the change
    Shawn



    Check out my web company Minneapolis Web Designer | MODx Web Design - Himmelberger Design


  5. #5
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    You could be right. Ill try again with the switched line through ignition.

  6. #6
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    I also have this problem - it's a stupid design - opus have done it too battery protection ONLY works when the ignition is off ! What use is that ??? the only reason it would be on is if the ignition line is left high by accident ( I have a switch that keeps it high for updating mp3s over WLAN )

    it would make sense to ALWAYS kill on battery under 11V ?


    James
    www.digital-car.co.uk - The UK CarPC Forum

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