• Ground Power Plugs




    I realize that it has been several years since these plugs have been available, but they are finally back in production. If anyone wishes to purchase one, please send an email to bill@manhein.net, stating your name, shipping address and a phone number for that address (for FedEx purposes). I will reply to your email with a final cost figure and payment instructions.
    Comments 34 Comments
    1. vanhook's Avatar
      vanhook -
      Bill, I know what they are but not exactly sure how you use it.
    1. j_w_bruce's Avatar
      j_w_bruce -
      Bill, those look awesome!
    1. wdnd5960's Avatar
      wdnd5960 -
      Bill,

      I got my Manhein Power Plugs today! They are beautiful!!! Thank you! How do prevent the jumper cables from scratching the finish on my new Power Plugs? Sorry. There always a stupid question in every crowd!

      I plugged it into the Sport and one of the Sierras, worked great!

      Deeply appreciated,

      Bill
    1. paulwerbin's Avatar
      paulwerbin -
      Wow! One of these has been living in my plane since the original production run. I feel like I should order one more just to show off on my wall!
    1. paulwerbin's Avatar
      paulwerbin -
      And just a reminder that the 24 volts planes have a relay that will keep a low rate trickle charger or battery minder from working through the ground plug.
    1. duknic's Avatar
      duknic -
      Hello Bill,
      Are you planning on making any receptacles? I would need one of those before I can use one of these...which I would like to do very much

      DD
    1. vanhook's Avatar
      vanhook -
      OH, I hadn't noticed the "N" and the "P" on them. Think I was looking on a little screen.
    1. Manhein's Avatar
      Manhein -
      Quote Originally Posted by vanhook View Post
      Bill, I know what they are but not exactly sure how you use it.
      Simply remove the rubber plug from the Ground Power receptacle and insert the Ground Power plug. Attach a jumper cable from the Positive terminal of an auxiliary battery to the Positive (P) connection point on the Power Plug, followed by attaching another jumper cable from the Negative terminal of an auxiliary battery to the Negative (N) connection point on the Power Plug. Then, start the engine and remove the jumper cables, Ground Power plug and insert the rubber plug into the Ground Power receptacle. If using a battery charger, attach its Positive and Negative cables accordingly. Remember to always attach the Positive connection first and disconnect it last.
    1. Manhein's Avatar
      Manhein -
      Quote Originally Posted by wdnd5960 View Post
      Bill,

      I got my Manhein Power Plugs today! They are beautiful!!! Thank you! How do prevent the jumper cables from scratching the finish on my new Power Plugs?
      Simple. Use jumper cables with foam clamps.
    1. j_w_bruce's Avatar
      j_w_bruce -
      Quote Originally Posted by duknic View Post
      Hello Bill,
      Are you planning on making any receptacles? I would need one of those before I can use one of these...which I would like to do very much

      DD
      You can make a power receptacle or you can keep the FAA happy with your paperwork, but it's nearly impossible to do both. Your best bet is to buy a receptacle off a sierra, sundowner, or OLD style bonanza from a salvage yard and have that installed. I got mine in just last week...
    1. duknic's Avatar
      duknic -
      Thank you Bill. I will start looking for a used receptacle...
    1. BobLewis's Avatar
      BobLewis -
      I have a receptacle. I will sell it for 75 bucks including shipping. However I don't have the rubber plug. I suggest that anyone installing the receptacle also install a doubler. It will add strength to the skin which will take stress from installing and removing the adaptor. (this is a true statement for ANY power plug install.) bonanzaparts.biz also has several power receptacles.
    1. j_w_bruce's Avatar
      j_w_bruce -
      Quote Originally Posted by BobLewis View Post
      I have a receptacle. I will sell it for 75 bucks including shipping. However I don't have the rubber plug. I suggest that anyone installing the receptacle also install a doubler. It will add strength to the skin which will take stress from installing and removing the adaptor. (this is a true statement for ANY power plug install.) bonanzaparts.biz also has several power receptacles.
      Bob, I wish I had known... I paid 150 for mine. But the real stress to the skin seems to be removing and installing the rubber plug. That thing is hard to get in and out, you got to twist.
    1. BobLewis's Avatar
      BobLewis -
      That means you have a good plug. The reason some have the rubber plug missing is that they fell out.
    1. SilverEagle2's Avatar
      SilverEagle2 -
      Wait...there is a plug?
    1. duknic's Avatar
      duknic -
      I will be getting a used receptacle - if someone has a pic of this mythical rubber plug I would be quite appreciative to see it either here or in a PM.

      As a form of gratitude I will refrain from making any rubber plug jokes.
      for now...
    1. duknic's Avatar
      duknic -
      Thanks JW - that looks make-able.

      since the receptacle is surrounded by laminar-flow-breaking-screws, and is aft of the narrowing point on the fuselage, I am thinking that it doesn't really need a "muffin top" head, and a standard rubber plug with a hollowed out center may do the job?

      also, was that on the L/h side? My battery is on the r/h side, and I kinda expected the receptacle to go on the same side as the battery...
    1. sjcote's Avatar
      sjcote -
      Quote Originally Posted by j_w_bruce View Post
      But the real stress to the skin seems to be removing and installing the rubber plug. That thing is hard to get in and out, you got to twist.
      It IS hard. The receptacle is slightly tapered; though the plug isn't (dammit). So if you grab the ring with pliers and pull straight out (well...maybe a little twist too) it will stretch and thin.
      Now getting it back in? #^*@#!!
    1. Manhein's Avatar
      Manhein -
      Quote Originally Posted by sjcote View Post
      It IS hard. The receptacle is slightly tapered; though the plug isn't (dammit). So if you grab the ring with pliers and pull straight out (well...maybe a little twist too) it will stretch and thin.
      Now getting it back in? #^*@#!!
      Well, actually the receptacle is not tapered internally. The one in my hand measures 1.002" from front to rear internally. Besides, the main "gripping" action of the rubber plug is on the 3/8" diameter center (Battery Positive Connection) pin in the center of the receptacle as shown in Jay Bruce's Rubber Plug photo above..
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