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Thread: 2 days until a dead battery

  1. #1
    Maximum Bitrate Woofnstuff's Avatar
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    2 days until a dead battery

    well more of a woops than a fault...

    i went away for the weekend and left my car parked at work on friday night, got back to town on sunday at about midnight and it would seem the pc turned off for 3 days WILL drain my battery to the point where it wont start.
    i had been wondering about this and was planning on measuring the power draw when off today.

    lucky someone walked into the carpark at that moment to go home so i stole a jump start off them.

    what do other people do to avoid this.
    cheapest option is a physical switch.
    but there must be clever options

  2. #2
    Fusion Brain Creator 2k1Toaster's Avatar
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    Well I can leave mine over the weekend with the screen in standby. But when I go on vacation like I just did, I hook up a trickle charger basically and it keeps it good to go.

    Before the charger I just unplugged it. I have a connector that has 4 wires I use for power, ground, ignition, and amp remote. I just need to unscrew the band around it, and pull the pieces apart. Then it is all good.

    But there will always be a small draw for things like your remote door lock/unlock and all those fancy gizmos.

    If it is drainging that fast, maybe you have a small short somewhere?
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  3. #3
    Maximum Bitrate Woofnstuff's Avatar
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    i think my battery may be getting close to the end of its life too.

    i might just put a master power kill switch in for the pc stuff and flick that when i need.

    i'll go do some tests (its cold outside and warm inside this might take a while ) ..

    i have a Intel D201GLY, do they draw much power when "off" (and i'll know soon anyway)

  4. #4
    Variable Bitrate warnockm's Avatar
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    i put an on/off switch on the battery wire to my power supply. I use it both to turn off the power when i'm not using it for a week, and to reboot my computer while driving. I've also left my computer RUNNING on the battery for an afternoon or evening w/ no problems.
    Progress - VIA EPIA SP8000 | 120 Opus Power Supply & Case | 1GB Ram | 120GB 2.5" Hard Drive | Bluetooth 2.0 | GPRS/3G | Wifi | Road Runner/LSX 2.0 (waiting for a day skin for 3.0) | iGuidance 4.0 | Lilliput 7"

  5. #5
    Maximum Bitrate Woofnstuff's Avatar
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    my comp runs for 2 hours no worries... i know because i forgot about it for 2 hours once... car still started after that...

  6. #6
    Maximum Bitrate NiSlo's Avatar
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    I don't have any problems leaving mine for a few days with the computer off without unplugging it. When I go away, I just remove the inline fuse from the battery feed to the carputer.
    I installed my carpc into my pet Kangaroo, mate.

  7. #7
    FLAC Chairboy's Avatar
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    Is the computer actually OFF? Hibernate will turn it off, Standby will use a trickle of power to keep RAM energized.
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  8. #8
    Maximum Bitrate Woofnstuff's Avatar
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    Off as in shutdown.

    sleep modes i find a pain in the ***.

    its finally mid afternoon here i should go and do the stuff i was planning hours ago..

  9. #9
    SD beats everything. So there. danielkh's Avatar
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    I've been having random issues with my battery dying. Today I found the culprit. BSOD at the end of hybernation, caused by a driver. The BSOD is keeping the computer active until the battery is completely dead. Seems that even the 11v saftey is gone when this happens. lol

    Guess I need to find the bad driver.
    My opinion is my own.

  10. #10
    Variable Bitrate FPeter's Avatar
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    is there any stuff on 5Vsb line?

    other:

    is this supply stable enough for the D201? 5V rail is 5A on it, as i saw in docs. I have an M1-ATX with 5V 10A line, and as i measured system eats 6-7A from this line! 512MB RAM, 3.5" HDD > 5V ~0A - uses 12V, wo GPS and others

    on hot days, i had stability problems with this config. now i placed the supply next to the cpu cooler's wave, and its ok...
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