Results 1 to 9 of 9

Thread: How long will battery last with M2 on P1?

  1. #1
    Low Bitrate
    Join Date
    Dec 2006
    Posts
    65

    How long will battery last with M2 on P1?

    Quick question: if I set my M2-ATX to P1 (5s + 1 min. autolatch / 1 min. hard off), so that it's only drawing .5 ma, approximately how long can I leave the car off without draining the battery?
    Portecho: Entertainment Technology News, Reviews and How-to's

  2. #2
    Neither darque nor pervert DarquePervert's Avatar
    Join Date
    Apr 2004
    Location
    Elsewhere
    Posts
    13,949
    There's no way to answer that without knowing about your battery, the specs of your PC and your audio system.
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

  3. #3
    Low Bitrate
    Join Date
    Dec 2006
    Posts
    65
    Well, I was just looking for a ballpark answer... and why would any of that matter, beyond the specs of the battery? Both the audio and the pc would be off, save the .5 mA mentioned that the m2-atx supposedly draws when completely off.

    fwiw, the audio system is stock Honda Odyssey, nothing fancy (no amp) and the pc is based on the Intel D945GCLF (built in Atom) + 3.5 IDE HD + one or two usb peripherals.
    Portecho: Entertainment Technology News, Reviews and How-to's

  4. #4
    Neither darque nor pervert DarquePervert's Avatar
    Join Date
    Apr 2004
    Location
    Elsewhere
    Posts
    13,949
    Sorry. Misread your post.
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

  5. #5
    Low Bitrate
    Join Date
    Dec 2006
    Posts
    65
    OK, perhaps I should phrase the question another way...

    For you guys using a m2-atx, have you ever returned to your vehicle and found your battery dead (assuming proper wiring and proper hibernation)? If so, how many days had transpired?
    Portecho: Entertainment Technology News, Reviews and How-to's

  6. #6
    Maximum Bitrate Crinos's Avatar
    Join Date
    Mar 2009
    Location
    Kristiansand, Norway
    Posts
    489
    Hum.. It realy depens on the battery of you car and the car itself.

    a 50a/h battery can deliver 50ampere for 1 hour!
    a 70a/h battery can deliver 70ampere for 1 hour... and so forth.

    0.5ma is 0,0005a

    So, if 0.5ma is the ONLY thing the battery need to keep alive, it will do so for 100.000 hours (if a 50a/h battery).
    But keep in mind, every car now days, have memory and other things drawing tiny bits of ampere all all times.

  7. #7
    Newbie
    Join Date
    Sep 2008
    Location
    Joliet
    Posts
    1
    My Altima has sat for days with the PC off with no problems . Even in the dead of last winter it was OK .

    Just be absolutely positive the PC shuts down . I 'thought' my PC shut down
    ok but it either locked up or rebooted itself 'cause in the morrning I had a very dead car .

    Now I enable hibernation just in case I 'forget' to shut off the PC.

  8. #8
    Low Bitrate
    Join Date
    Dec 2006
    Posts
    65
    Thanks for the feedback, guys. That pretty much provides the answers I needed.
    Portecho: Entertainment Technology News, Reviews and How-to's

  9. #9
    Maximum Bitrate Woofnstuff's Avatar
    Join Date
    Oct 2007
    Location
    Auckland
    Posts
    570
    i have a good old fashioned switch inline on the power cable, even tho i have a "smart" psu with all the bits, cant beat a switch for knowing that its all off

Similar Threads

  1. What kind of cap/amp?
    By asong31 in forum Car Audio
    Replies: 60
    Last Post: 12-26-2006, 01:30 PM
  2. How long can you run a 90W power supply off the battery?
    By Pseudo Nim in forum Power Supplies
    Replies: 8
    Last Post: 06-24-2005, 01:27 AM
  3. How long will it take for my battery to run out?
    By Deep in forum Power Supplies
    Replies: 7
    Last Post: 05-06-2005, 06:34 PM
  4. MPJA - MECI ASTEC DC-DC Converter
    By Luc in forum General Hardware Discussion
    Replies: 39
    Last Post: 11-22-2004, 09:31 PM
  5. Programming Question in VB
    By az1324 in forum Software & Software Development
    Replies: 8
    Last Post: 10-01-2004, 09:24 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •