Page 1 of 2 12 LastLast
Results 1 to 10 of 14

Thread: Backup battery

  1. #1
    Newbie HumungousBacon's Avatar
    Join Date
    Apr 2009
    Location
    Cocoa, Fl
    Posts
    34

    Backup battery

    Anybody ever use a UPS (uninterrupted power supply) to power their pc for a little while so it can update or sync without having to have the car running?

  2. #2
    Neither darque nor pervert DarquePervert's Avatar
    Join Date
    Apr 2004
    Location
    Elsewhere
    Posts
    13,948
    They are big, heavy, and they don't like cheap inverters.
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

  3. #3
    Newbie HumungousBacon's Avatar
    Join Date
    Apr 2009
    Location
    Cocoa, Fl
    Posts
    34

  4. #4
    Fusion Brain Creator 2k1Toaster's Avatar
    Join Date
    Mar 2006
    Location
    Colorado, but Canadian!
    Posts
    10,049
    Quote Originally Posted by HumungousBacon View Post
    why do you need a

    What DP said is exactly true...

    I read a while back someone was using some serial connection to a PIC they programmed and a spare battery on a tank circuit.
    Fusion Brain Version 6 Released!
    1.9in x 2.9in -- 47mm x 73mm
    30 Digital Outputs -- Directly drive a relay
    15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
    Buy now in the MP3Car.com Store

  5. #5
    Low Bitrate nalav's Avatar
    Join Date
    Apr 2009
    Location
    Louisiana
    Posts
    93
    I'm not understanding why an UPS is needed, would the car battery not suffice?

  6. #6
    Maximum Bitrate Crinos's Avatar
    Join Date
    Mar 2009
    Location
    Kristiansand, Norway
    Posts
    483
    That is my thoughts as well... What is an UPC??? A battery of course!

    And bumping a post from yesterday is just plain rude!

  7. #7
    North of the land of Hey Huns
    Auto Apps:loading...

    Join Date
    Jun 2004
    Location
    Westminster, MD
    Posts
    2,127
    As DP said, most UPS's don't like cheap inverters. We use Xantrex Pro Sine inverters at work because they play nice with UPS's, but they cost upwards of $1500. The key thing to look for is "true sine wave" inverters that put out a clean sine wave, UPS's are very finicky about their power input.
    "stop with the REINSTALLS, what do you think we got some lame-o installer!!!" - mitchjs
    RevFE
    My Shop

  8. #8
    Neither darque nor pervert DarquePervert's Avatar
    Join Date
    Apr 2004
    Location
    Elsewhere
    Posts
    13,948
    Quote Originally Posted by Crinos View Post
    That is my thoughts as well... What is an UPC??? A battery of course!
    A UPC is a barcode issued by a product's manufacturer for inventory control.
    A UPS (uninterruptable power supply) is a battery.

    And bumping a post from yesterday is just plain rude!
    QFT!
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

  9. #9
    Newbie HumungousBacon's Avatar
    Join Date
    Apr 2009
    Location
    Cocoa, Fl
    Posts
    34
    Just a simple question. didn't know all of that. i just don't want to leave my car running while i sync it with my home PC. was trying to figure out a way to power the PC without draining the car's battery.

  10. #10
    Fusion Brain Creator 2k1Toaster's Avatar
    Join Date
    Mar 2006
    Location
    Colorado, but Canadian!
    Posts
    10,049
    Quote Originally Posted by HumungousBacon View Post
    Just a simple question. didn't know all of that. i just don't want to leave my car running while i sync it with my home PC. was trying to figure out a way to power the PC without draining the car's battery.
    Well you will be draining a battery no matter what.

    If you are planning on using it for long periods with the car off, I suggest a secondary battery system consisting of a deep cycle battery (can be discharged and charged to death lots of times without loosing much charge as compared to your standard lead acid which will never be the same after a deep discharge), a charging system that isolates the secondary battery from the car starting battery when off, and charges when on, and a smart DC-DC PSU for the PC.
    Fusion Brain Version 6 Released!
    1.9in x 2.9in -- 47mm x 73mm
    30 Digital Outputs -- Directly drive a relay
    15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
    Buy now in the MP3Car.com Store

Page 1 of 2 12 LastLast

Similar Threads

  1. Battery Loosing Charge
    By TeamRSX in forum Power Supplies
    Replies: 15
    Last Post: 05-15-2008, 10:26 AM
  2. Powering car from a 13.8V power supply ok?
    By PURDooM in forum Power Supplies
    Replies: 27
    Last Post: 06-12-2006, 11:56 AM
  3. 2nd battery + computer controlled lighting
    By jparks27 in forum Show off your project
    Replies: 22
    Last Post: 06-02-2006, 08:52 PM
  4. FS on Ebay 12VDC 5.1Ah Ignition Backup Battery
    By TheSpecialist in forum Classified Archive
    Replies: 111
    Last Post: 03-24-2005, 08:32 PM
  5. MPJA - MECI ASTEC DC-DC Converter
    By Luc in forum General Hardware Discussion
    Replies: 39
    Last Post: 11-22-2004, 09:31 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
  •