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Thread: External Power Outlet

  1. #11
    Quote Originally Posted by paxflyer View Post
    One thing to keep in mind with these cables. The Bat needs to be ON in order for the power to get to the battery.
    This is only true of the 24 volt systems. You do not need to turn on the Master switch on the 12 volt systems.
    Bill Manhein
    Sierra N6164C
    KBTR

    States visited by N6164C


  2. #12
    I can say from experience that I rather install a quality battery and a solar battery tender to ensure starting. I had an issue where I repeatedly asked a lineman if his GPU was 12v and he assured me it was. I was charged by the same unit previously without incident and trusted the lineman. He hooked up his plug into the receptacle that was installed into my plane and a smoked battery, master relay, wiring and voltage regulator later he realized he grabbed the 24v cart. To avoid any issues, I would go with a self-contained system that YOU know is correct!
    N5198M
    1978 Beech Sundowner
    M-2005
    Lycoming 360

  3. #13
    "Keep in mind that the 24 volt planes need some relays also." Just a thought here for you 24v guys: on the airliners the GPU cable also powers the relays to connect to the batteries (but the plane itself won't be powered up until the switches in the cockpit are activated). So you could wire the receptacle with a jumper that powers the relay so that the battery gets charged without actually turning on ship's power. Admittedly this may require an extra solenoid and a pair of diodes to direct the current to the battery only.
    Last edited by Clinderman; 03-17-2013 at 06:09 PM. Reason: c.t.

  4. #14
    Or, you could wire the receptacle to the battery side of the relay, essentially the same as the 12V versions.

    Mark
    In Oz

  5. #15
    sheesh Mark - do you Kiwis always go for the simpler solution???

  6. #16
    I am a big fan of the KISS Principle.

    But, Kiwis grow in New Zealand, not in Oz.

    Mark
    In Oz
    (Oz-tray-lee-ya)

  7. #17
    @Mark: ooops: clue was in the name.

  8. #18
    Guys the adapters that Bill makes are the only difficult part to find. The round receptacle is actually an early Bonanza part. Joe Brewer has several of these, including the rubber plug cover. He is a BAC member. Give him a call.

  9. #19
    As always, Bob is spot on!
    All for one!
    Chris Linderman
    BAC Founding Member & former President
    Sierra N5106M
    KSUN (Hailey, ID)

    States visited by N5106M


  10. #20

    AN2552-3A three prong receptacle

    Below is a link to a discussion on battery external power.

    I have the AN2552-3A plug, (like on many Cessna's), wired into my 19A but it is not a simple task.

    http://www.beechaeroclub.org/showthr...Minder-Charger
    1969 Musketeer 19A
    O-320-D2B 160hp
    MB-450 C-GYGP
    Edmonton/Josephburg CFB6
    Alberta Canada

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