09 Jun 2025, 07:48 [ UTC - 5; DST ]
|
Username Protected |
Message |
Username Protected
|
Post subject: Re: MU-2's Posted: 05 Dec 2015, 08:34 |
|
 |

|
|
 |
Joined: 10/27/10 Posts: 10790 Post Likes: +6891 Location: Cambridge, MA (KLWM)
Aircraft: 1997 A36TN
|
|
Username Protected wrote: I built a case with two Battery Minders in it and fitted the airplane with a single point battery connector. Now my home FBO knows how to put the plane in the hangar and they hook up the BM for me. So my planes is 100% on BM when home. Mind snapping a few pics when you get a chance and sharing the part number of the airframe connector you're using?
|
|
Top |
|
Username Protected
|
Post subject: Re: MU-2's Posted: 05 Dec 2015, 15:33 |
|
 |

|
|
 |
Joined: 11/08/12 Posts: 7370 Post Likes: +4834 Location: Live in San Carlos, CA - based Hayward, CA KHWD
Aircraft: Piaggio Avanti
|
|
Username Protected wrote: Which battery minder model do you MU2 guys use? BatteryMinder IS the product brand name. Concorde versionGill version
_________________ -Jon C.
|
|
Top |
|
Username Protected
|
Post subject: Re: MU-2's Posted: 05 Dec 2015, 17:09 |
|
 |

|
|
Joined: 08/21/14 Posts: 287 Post Likes: +88 Location: KPDK
Aircraft: C421B MU2-40 Solitai
|
|
The key to my BM setup is that all it takes is to plug in one connector to the plane that connects to the two batteries. No panels to open, nothing to disconnect, no buttons to push.
Mike C.[/quote]
Mike How did you set this up. I tried to get CTS to install mine and they refused.
_________________ Sandy
|
|
Top |
|
Username Protected
|
Post subject: Re: MU-2's Posted: 06 Dec 2015, 01:16 |
|
 |

|
|
 |
Joined: 08/03/10 Posts: 1561 Post Likes: +1809 Company: D&M Leasing Houston Location: Katy, TX (KTME)
Aircraft: CitationV/C180
|
|
Username Protected wrote: Which battery minder model do you MU2 guys use? BatteryMinder IS the product brand name. Concorde versionGill version
I realize that. Have one for my Baron. Didn't realize there weren't different models for the larger batteries. Should have looked at the website first!
|
|
Top |
|
Username Protected
|
Post subject: Re: MU-2's Posted: 06 Dec 2015, 01:18 |
|
 |

|
|
Joined: 12/03/14 Posts: 20300 Post Likes: +25439 Company: Ciholas, Inc Location: KEHR
Aircraft: C560V
|
|
Username Protected wrote: Mind snapping a few pics when you get a chance and sharing the part number of the airframe connector you're using? Uses two BMs. Built them both into one Pelican case. It runs lid closed, just shown here open so you can see inside. Below the plate is an AC splitter that powers both BMs and a small fan to circulate air just to be sure the BMs won't overheat (I think this was not really needed). The space above the plate is where I can store the AC input cord and the aircraft feeder cable. Cable connectors are Amphenol AC4MJ: http://www.mouser.com/search/ProductDet ... alkeyAC4MJ4 pins, two pins for each battery (can't be tied together). Aircraft side is two parts, a socket Amphenol AC4FDZ: http://www.mouser.com/search/ProductDet ... lkeyAC4FDZAnd a spring loaded protective cover: http://www.mouser.com/search/ProductDet ... lkeySCCD-WThey are mounted in a wheel well (where both my batteries are). The aircraft socket is wired to each battery connector directly. Inside each battery connector is a small fuse on EACH line (four fuses in all), just to be safe. Wire is heavy 4 conductor trailer wire. I also made a warning sign to put by the nose to help reduce the chance someone tows with the cable attached. I tried to make a system that would unplug when tugged, but that turn out to be not practical. If someone does tow without unplugging, the Pelican case gets dragged without breaking the cable, and that's a pretty strong indicator something is wrong. Mike C.
Please login or Register for a free account via the link in the red bar above to download files.
_________________ Email mikec (at) ciholas.com
|
|
Top |
|
Username Protected
|
Post subject: Re: MU-2's Posted: 06 Dec 2015, 01:21 |
|
 |

|
|
Joined: 12/03/14 Posts: 20300 Post Likes: +25439 Company: Ciholas, Inc Location: KEHR
Aircraft: C560V
|
|
Username Protected wrote: How did you set this up. My mechanic did it. Quote: I tried to get CTS to install mine and they refused. They obviously don't understand the meaning of "minor alteration". Mike C.
_________________ Email mikec (at) ciholas.com
|
|
Top |
|
Username Protected
|
Post subject: Re: MU-2's Posted: 06 Dec 2015, 09:16 |
|
 |

|
|
 |
Joined: 10/27/10 Posts: 10790 Post Likes: +6891 Location: Cambridge, MA (KLWM)
Aircraft: 1997 A36TN
|
|
Username Protected wrote: Mind snapping a few pics when you get a chance and sharing the part number of the airframe connector you're using? Uses two BMs. Built them both into one Pelican case. It runs lid closed, just shown here open so you can see inside. <More great info snipped.> Thanks, Mike!
|
|
Top |
|
Username Protected
|
Post subject: Re: MU-2's Posted: 06 Dec 2015, 17:09 |
|
 |

|
|
Joined: 02/23/14 Posts: 1555 Post Likes: +1326 Location: KCOU
Aircraft: PA-28 / C-182
|
|
Username Protected wrote: Looks an awful lot like a clock.  Careful the Jeffs may shut this tread down for politics. Or if we keep talking the Mu2 up maybe they will lock it for religion. 
_________________ John Chancellor PPL ASEL, AGI, IGI In memory of the victims of the Dictatorship
|
|
Top |
|
Username Protected
|
Post subject: Re: MU-2's Posted: 06 Dec 2015, 18:23 |
|
 |

|
|
Joined: 08/21/14 Posts: 287 Post Likes: +88 Location: KPDK
Aircraft: C421B MU2-40 Solitai
|
|
Username Protected wrote: How did you set this up. My mechanic did it. Quote: I tried to get CTS to install mine and they refused. They obviously don't understand the meaning of "minor alteration". Mike C.
Mike Thanks, Unfortunately, I have a battery in the nose. I was hoping to find a way to not have to take the nose panel off to connect that minder to.
_________________ Sandy
|
|
Top |
|
Username Protected
|
Post subject: Re: MU-2's Posted: 06 Dec 2015, 21:00 |
|
 |

|
|
 |
Joined: 11/08/12 Posts: 7370 Post Likes: +4834 Location: Live in San Carlos, CA - based Hayward, CA KHWD
Aircraft: Piaggio Avanti
|
|
Username Protected wrote: Thanks, Unfortunately, I have a battery in the nose. I was hoping to find a way to not have to take the nose panel off to connect that minder to. I don't quite know the details on this since mine has both in the wheel well, but I believe there are two big cables that run back from the nose into the vicinity of the wheel well and then into the electrical system. I am not certain, but it could be that those two big cables connect to something in the wheel well via a couple of big lugs. This would be a good place to hook a minder connector. Mine are both in the wheel wells, so I just have a couple small leads to each battery connected into the battery connectors (inline-fused appropriately) and a connector attached to the battery bracket on the pilot's side. Very handy and simple to plug/unplug.
_________________ -Jon C.
|
|
Top |
|
Username Protected
|
Post subject: Re: MU-2's Posted: 07 Dec 2015, 01:08 |
|
 |

|
|
Joined: 01/04/12 Posts: 282 Post Likes: +101
Aircraft: C560, Extra NG, FX3
|
|
The Concorde batteries are AGM (absorbed glass mat) style and sealed. The Gills are regular flooded lead acid cells. The charging voltage is supposed to be slightly higher on an AGM battery. Most new cars use AGM batteries. They are much more robust and last a lot longer. Way better technology. I use 2 Concorde AGM's for my 441, with a battery minder I hook up the Battery minder if there is more than a week or two between usage. I have a start cart in the hangar but never use it. Worst thing to a lead acid battery is a low charge condition as it builds sulfate on the battery cells/plates. I do not know if a high current draw is damaging or not. Maybe it is good since a heavy current draw and high recharge current might help desulfate the battery?
|
|
Top |
|
Username Protected
|
Post subject: Re: MU-2's Posted: 07 Dec 2015, 02:37 |
|
 |

|
|
Joined: 12/03/14 Posts: 20300 Post Likes: +25439 Company: Ciholas, Inc Location: KEHR
Aircraft: C560V
|
|
Username Protected wrote: I don't quite know the details on this since mine has both in the wheel well, but I believe there are two big cables that run back from the nose into the vicinity of the wheel well and then into the electrical system. I am not certain, but it could be that those two big cables connect to something in the wheel well via a couple of big lugs. This would be a good place to hook a minder connector. Nose battery goes through a disconnect relay. The cables to the back are not powered with the plane is off, so the BM can't connect there. You would need to run a new wire (or two if the nose battery is #2, negative not grounded) to where the BM connector will be. Or have two connectors. Mike C.
_________________ Email mikec (at) ciholas.com
|
|
Top |
|
|
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot post attachments in this forum
|
Terms of Service | Forum FAQ | Contact Us
BeechTalk, LLC is the quintessential Beechcraft Owners & Pilots Group providing a
forum for the discussion of technical, practical, and entertaining issues relating to all Beech aircraft. These include
the Bonanza (both V-tail and straight-tail models), Baron, Debonair, Duke, Twin Bonanza, King Air, Sierra, Skipper, Sport, Sundowner,
Musketeer, Travel Air, Starship, Queen Air, BeechJet, and Premier lines of airplanes, turboprops, and turbojets.
BeechTalk, LLC is not affiliated or endorsed by the Beechcraft Corporation, its subsidiaries, or affiliates.
Beechcraft™, King Air™, and Travel Air™ are the registered trademarks of the Beechcraft Corporation.
Copyright© BeechTalk, LLC 2007-2025
|
|
|
|