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Thread: Opus 150 Causing Drain or Bad Battery? Maybe 5vsb Issue?

  1. #11
    FLAC
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    Quote Originally Posted by chuckster
    Don't want to thread jack here but do all Opus' have this problem? I think the newer ones have a fix for this as I have the Opus 120 and my truck was parked for two weeks while on vacation, back in Sept, and I had no problems starting it at all.
    The 120's are different from the 150's. Opus is offering to mod the 150's to cut the 5vsb, but not eveyone want's that. I don't.
    I would have got the 120 as I hear it's better, but I think I needed the beefier 150. My setup doesn't use as much power as most people think, but I don't know if a 120 would be OK for it.

    I want to use S3 standby, so I didn't really think about needing the "hard off" ability that the M2 and maybe 120 has. Or maybe the 120 has the low voltage protection when off, I dont know. Anyway, I wish the 150 had low voltage protection when off. It just makes sense, you know?
    1999 Black Pontiac Trans Am
    CarPC's in F-bodies
    How To Relocate Climate Controls on the 97-02 F-body Cars
    (AMD Sempron 3000+, Opus 150)
    Car PC system is out, Alpine system is in.

  2. #12
    FLAC
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    Quote Originally Posted by nkotch
    Could also just completely disconnect the OPUS for a couple days and see if you still have battery problems.
    This weekend I unplugged the main power while it sat all day. The voltage seemed fine and the battery didn't go down much at all. I know it's still a flakey battery by not being able to recover from a high load so I'm going to get a Optima red top next week.

    So know I wanted to know how much current the PC was drawing when off, so I went out and bought a new DMM. I measured my current draw by putting the leads inline between the power wires.

    Off it was 330mA!
    I turned the PC on and then let it go off again and it went down to 190mA. There is something about cutting power and then connecting it again that makes it draw the higher 330mA. Once the PC cycles once it returns to the normal 190mA which is about average I think.

    S3 standby/suspend was 280mA. Also average I believe. So I guess it's just my battery being old, going out and not being able to handle this small load for long.

    BTW, my PC was drawing about 4.5amps when running which is less than I thought it would be. I know the Opus 150 has a 15A fuse which is about it's limit before something will melt. During start up I saw around 6.3 amps at it's highest.
    1999 Black Pontiac Trans Am
    CarPC's in F-bodies
    How To Relocate Climate Controls on the 97-02 F-body Cars
    (AMD Sempron 3000+, Opus 150)
    Car PC system is out, Alpine system is in.

  3. #13
    Variable Bitrate nkotch's Avatar
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    So the 330mA and then the 190mA were using Standby?

    When you did hibernation the 280mA was just the PSU drawing power and should just be it keeping 5V powered because a computer in hibernation uses no power at all. Mine has that 5v mod done and I use hibernation so when I get a sec I may go check the draw on it with everything off just to see what it's drawing at the bare minimum (no 5v, computer in hibernation, etc..)
    Nick
    '99 Ford Escort ZX2 CarPC <-- RIP Feb '07

    2006 Chevy Equinox LS (Current Project)

    **VIA EPIA PD 1ghz Mobo, OPUS 150, 7" LinITX LCD touchscreen, 512 Ram, 60Gig HD, DLink Bluetooth, Belkin 802.11g wireless,

  4. #14
    FLAC
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    Sorry to confuse you, I wrote the wrong thing. I corrected it.

    My DMM can handle up to 10 amps, BTW so anyone checking the running current needs to make sure their DMM can handle at least 10 amps. Most DMM are fused and will blow it if it goes over 10amps, but some are not fused.
    1999 Black Pontiac Trans Am
    CarPC's in F-bodies
    How To Relocate Climate Controls on the 97-02 F-body Cars
    (AMD Sempron 3000+, Opus 150)
    Car PC system is out, Alpine system is in.

  5. #15
    Newbie
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    Has anyone wired up 2 batteries? I have a standard battery on my vito and a leisure battery alongside it. I have a trickle charge to the leisure battery, but this won't be enough to keep it charged. Has anyone linked up both batteries in parrallel via a relay??
    Cheers
    JG

  6. #16
    FLAC
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    What is a "vito" and what is a "leisure battery"?
    What is the point of hooking up 2 batteries, longer reserve time? How does that relate to this thread?
    1999 Black Pontiac Trans Am
    CarPC's in F-bodies
    How To Relocate Climate Controls on the 97-02 F-body Cars
    (AMD Sempron 3000+, Opus 150)
    Car PC system is out, Alpine system is in.

  7. #17
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    Sorry Guys,
    Mercedes Vito Van, and a leisure battery is a slow release amp hour type say 75ah. But can not take the high amps of starting. Linking up 2 batteries should stop the flat battery syndrome. Starting on your normal car/van high amp bettery and then powering your pc from the leisure battery.
    Cheers
    JG

  8. #18
    FLAC
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    It all depends. Throwing more battery at the problem will usually work. So will reducing the amperage draw of the PC when off. In my case it was just a flaky battery that would go down in voltage much faster than it should with a 190mA load. A good battery should last several days. You could also remove the 5vsb power from the PC and it's draw should go down to below 20mA. Then the battery should last for several weeks.
    1999 Black Pontiac Trans Am
    CarPC's in F-bodies
    How To Relocate Climate Controls on the 97-02 F-body Cars
    (AMD Sempron 3000+, Opus 150)
    Car PC system is out, Alpine system is in.

  9. #19
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    Just thinking, when I go camping I run my amps and screen (for movies) and after 2 hours I can not start the van. So switching to a leisure batt. may solve it.

  10. #20
    FLAC
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    Dual batteries may be good for your application. Perhaps with a manual switch to connect and disconnect them. Just connect them for a while when your driving to charge the leisure battery and then disconnect them. When you play movies it will run only on the leisure and get it quite low. After the movie, leave the leisure disconnected and start your van with the fully charged main starting battery. Then when your driving, connect them to charge it back up.

    Dual batteries have been discussed in detail on other threads. They really don't have much to do with this thread. Try a search for "dual battery".
    Does anyone know how to create dual battery setup?
    Dual Battery Setup - How Many Actually Use it?
    Maintaining battery while parked
    Dual-battery setup with a smaller battery?
    1999 Black Pontiac Trans Am
    CarPC's in F-bodies
    How To Relocate Climate Controls on the 97-02 F-body Cars
    (AMD Sempron 3000+, Opus 150)
    Car PC system is out, Alpine system is in.

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