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Thread: Adding a second battery?

  1. #11
    FLAC
    Join Date
    Apr 2001
    Location
    Portland OR
    Posts
    1,244

    Post

    Originally posted by embedded:
    <STRONG>I found from old at-ps doublediode which can handle 30 amps!
    It's MBR 3045</STRONG>
    Digikey has the MBR4045WT-ND 40 amp diode for about 2 bucks. It has a forward voltage drop of only .4 volts at 10 amps! It is my guess that you could use this to charge just about any battery. And if your worried about over current problems, you can always put a 0.01 - 0.5 ohm resistor in series with it to limit the charging current.
    MPEGBOX - Plexiglass Computer
    www.mpegbox.com

  2. #12
    Constant Bitrate
    Join Date
    Mar 2001
    Location
    West Yorkshire, United Kingdom
    Posts
    142

    Post

    I have a 2nd battery (split charge relay)
    shows schematics and pics http://oacar.mp3car.com

    costs like $10+battery cost..
    easy to do, 10 minute install job..

    just make sure if u buy an acid battery to house it properly.
    John McLear - [email protected]
    http://www.205oc.co.uk
    UK Mp3car slapnut
    #mp3car - Efnet
    Carplayer and Mediaengine *****
    spank gemma.co.uk for holding my motherboard for so long. still no board, wood work nearly done :|
    [-----------(90%)----] Completed :)
    pics at: http://www.zcentric.com/~mitcht/gall...me=Convertable

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