Today's Message Index:
----------------------
1. 01:02 AM - Re: GPU - 24V System - Crowbar Needed (woxofswa)
2. 03:22 AM - Connecting a battery charger to a 2 battery system (Bill Mauledriver Watson)
3. 04:11 AM - Re: Re: Battery Charger as Ground Power (bob noffs)
4. 04:42 AM - Re: Connecting a battery charger to a 2 battery system (John Ciolino)
5. 06:15 AM - Re: Ground Power Receptacle? (Ian)
6. 06:39 AM - Re: Connecting a battery charger to a 2 battery system (paul wilson)
7. 06:54 AM - Re: Connecting a battery charger to a 2 battery system (Deems Davis)
8. 07:10 AM - Re: Connecting a battery charger to a 2 battery system (bcondrey)
9. 11:11 AM - Modifying the Piper plug (woxofswa)
10. 11:24 AM - Re: Ground Power Receptacle? (bob noffs)
11. 12:27 PM - Re: Re: Connecting a battery charger to a 2 battery system (Bill Mauledriver Watson)
12. 01:27 PM - Re: Connecting a battery charger to a 2 battery system (bcondrey)
13. 01:44 PM - Re: Ground Power Receptacle? (n801bh@netzero.com)
14. 02:44 PM - Re: Re: Connecting a battery charger to a 2 battery system (Bill Mauledriver Watson)
15. 06:35 PM - 28V Contactors and Crowbar (Craig Winkelmann)
Message 1
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Subject: | Re: GPU - 24V System - Crowbar Needed |
Thanks for the info guys.
I am going to do it the proper way and have already ordered the parts. I just like
understanding the science as well
--------
Myron Nelson
Mesa, AZ
Emp completed, legacy build fuse in progress
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=243671#243671
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Subject: | Connecting a battery charger to a 2 battery system |
I have a 2 battery Z-14 system in an RV10. Rather than have a full
ground power capability, I'm planning to have some sort of plugs
available through the baggage compartment that would allow me to hook up
a smart charger occassionally.
Has anyone come up with a good set of plugs for this application? A
good approach to hooking up 2 batteries - either 1 at a time or both?
Message 3
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Subject: | Re: Battery Charger as Ground Power |
i have 6 or 8 of these little chargers on all my toys. i have noticed on
some some that the voltage was too low. i tried once to adjust the voltage
but couldn't get anything to turn.i guess i will go back and try again to
adjust the voltage on a couple that are too low. on the one that was too
high i soldered a diode in line and dropped the voltage.
bob noffs
On Mon, May 11, 2009 at 8:31 PM, David L. <skywagon@charter.net> wrote:
>
> The little, cheap Harbor Freight "maintainers" work quite well. I have
> used several. One key point however, ...many of them come set a tad too
> high in their fixed "float" voltage, to my thinking. I have seen them as
> high as 13.9 v.
>
> The good news, is they can be adjusted to the float voltage that you want.
> The little controller box should have a back lid that is lightly glued in
> place. Carefully work a very narrow blade screw driver or other tough, but
> thin device into the glued seam and work it until the back pops off. Inside
> is a small circuit board and potentiometer. It may have a spot of RTV on
> it. Work this loose. Turning the pot CW lowers to float voltage. I like
> about 13.2 v. Others may want a slightly different setting. I usually
> locate where the pot slotted screw adjust hole is located next to the little
> case and drill a 3/16 hole. That way, it can be adjusted from the outside.
> The little unit is quite stable after you get the setting where you want
> it. David
>
>
> ---- woxofswa <woxof@aol.com> wrote:
>
> ============
>
> I'm no expert, but I think you are right.
>
> I think a 12.5 volt "maintainer" would make much more sense. They can be
> had at Harbor Freight for $5
>
> For ground tests and assembly, I plan on using a cheapo lawn tractor
> battery with a maintainer hooked up to it. The battery would then serve as
> a sink if there is a problem with the maintainer.
>
> --------
> Myron Nelson
> Mesa, AZ
> Emp completed, legacy build fuse in progress
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=243569#243569
>
>
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Subject: | Re: Connecting a battery charger to a 2 battery system |
Take a look at www.powerletproducts.com. They have a variety of outlets
to install on motorcycles for heated clothing, GPS, etc. I installed an
SAE connector (designed to be mounted on a saddlebag) in the panel
covering my battery in the forward baggage compartment of my RV-8. The
Battery Tender I use terminates in an SAE connector to switch between
alligator clips or a pigtail with ring terminals to be mounted to the
battery.
John Ciolino
.
Bill Mauledriver Watson wrote:
> <MauleDriver@nc.rr.com>
>
> I have a 2 battery Z-14 system in an RV10. Rather than have a full
> ground power capability, I'm planning to have some sort of plugs
> available through the baggage compartment that would allow me to hook
> up a smart charger occassionally.
>
> Has anyone come up with a good set of plugs for this application? A
> good approach to hooking up 2 batteries - either 1 at a time or both?
>
>
Message 5
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Subject: | Re: Ground Power Receptacle? |
Thanks. Of course my main effort here is to fix the reason for my lack
of charging, which you would have seen in another post.
I like "B" since it can serve both purposes, and RV's are a bit
inaccessible when buttoned up. I do actually have "A" already. I have
a little trickle charger/conditioner that came with a connector that is
mounted permanently and accessible through my engine oil check hatch.
Bob Nuckolls suggested that the Piper connector is relatively common -
there are LOTS of Piper aircraft around so I'll probably go with the
significantly less expensive Piper connectors, and make sure to put some
good "12V ONLY" labeling next to the connector.
Thanks to all who responded.
On Mon, 2009-05-11 at 20:53 -0400, bakerocb@cox.net wrote:
>
> 5/11/2009
>
> Hello Ian, You wrote:
>
> 1) "Having spent the last couple of weeks needing to repeatedly recharge my
> RV-9A battery,........"
>
> What is abnormal about either your system or your mode of operation that
> causes this repeat problem? If there is a fundamental fault in either of
> those two areas maybe a fault correction approach rather than an external
> charging receptacle band-aid should be considered.
>
> 2) "......I can say that an external charging receptacle would have made my
> life a lot easier."
>
> Realize that external charging receptacles can come in two different
> flavors:
>
> A) A simple low amperage connection system going directly to the battery
> that is suitable for connecting a 120 volt input, low amperage output
> battery charger / maintainer for just the purpose of recharging /
> maintaining the battery.
>
> B) A more elaborate high amperage system that would facilitate cranking the
> engine as well as recharging the battery with maybe some additional features
> such as reverse voltage protection.
>
> 3) "Can anyone tell me the best receptacle to use, that would be the most
> standard?"
>
> You would have to decide whether you wanted an A or a B solution in order to
> answer the "best" question.
>
> If an A solution satisfies your needs then there are dozens of choices -- it
> only requires two wires with some simplistic polarity protection. I have
> operated for several years now with just two wires coming directly from my
> battery up to the cockpit area. One wire is terminated with a female, fully
> insulated, Faston type connector, the other wire is terminated with a male,
> fully insulated, Faston type connector. The wires are just tucked out of the
> way when not in use. See:
>
> http://www.terminaltown.com/Pages/Page9.html
>
> My battery charger clip ons have been modified with the appropriate stub
> wires and Faston type connectors added. One benefit of this system is that I
> can connect it up and then attach a volt meter to the charger clips. It
> tells me what the battery voltage is. Then I can plug in the charger and
> monitor the charging voltage -- very handy.
>
> If only a B solution will satisfy you then look to Bob Nuckoll's published
> material on this subject. The most commonly found receptacle and plug
> arrangement found at FBO's is the three prong. See here:
>
> http://www.aircraftspruce.com/catalog/elpages/extpowerrect.php
>
> The next most commonly found is the Piper receptacle and plug arrangement.**
> See here:
>
> http://www.aircraftspruce.com/catalog/elpages/piperplugsock.php
>
> BUT there is a major "gotcha" that you must be aware of if you have a 12
> volt aircraft electrical system and you install one of the above
> receptacles -- some ground power carts with the above plugs will only put
> out 24 volts. If you zap your 12 volt system with 24 volts you will suffer
> damage.
>
> 'OC' Says: "The best investment we can make is the effort to gather and
> understand knowledge."
>
> **PS: There is also a single center post receptacle and plug system similar
> in apprearance to the Piper system, but not compatible, that is found on
> some Beechcraft airplanes. Very unlikely to find a ground power cart with a
> plug compatible with this odd ball receptacle.
>
> ========================================================
>
> Time: 12:24:10 PM PST US
> Subject: AeroElectric-List: Ground Power Receptacle?
> From: Ian <ixb@videotron.ca>
>
>
> Having spent the last couple of weeks needing to repeatedly recharge my
> RV-9A battery, I can say that an external charging receptacle would have
> made my life a lot easier.
>
> Can anyone tell me the best receptacle to use, that would be the most
> standard? Can you also suggest a good source?
>
> While not planning to fly away on an almost dead battery, I do envisage
> moments when it would be useful to start from ground power, and then do
> some charging direct from the alternator. I'd imagine that flying
> locally would be fairly safe while the battery is being topped up, as
> long as your whole panel doesn't shut down if you lose battery.
>
> Ian Brown
> Bromont
> Quebec
>
>
>
>
>
Message 6
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Subject: | Re: Connecting a battery charger to a 2 battery system |
Why not use the plug that comes with the Shumacher smart maintainer.
It is intended to be attached to the batt. When not in use just let
it lay in an inconspicuous place. No cost involved and it is
insulated & polarized. Other smart maintainers come the same way.
Paul
=========
At 04:20 AM 5/12/2009, you wrote:
><MauleDriver@nc.rr.com>
>
>I have a 2 battery Z-14 system in an RV10. Rather than have a full
>ground power capability, I'm planning to have some sort of plugs
>available through the baggage compartment that would allow me to
>hook up a smart charger occassionally.
>
>Has anyone come up with a good set of plugs for this application? A
>good approach to hooking up 2 batteries - either 1 at a time or both?
>
>
Message 7
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Subject: | Re: Connecting a battery charger to a 2 battery system |
I'm also very interested in learning how to design / craft a method for
connecting a GPU to a 2 battery (Z-14) a/c. Experience has taught me
that notwithstanding my excellent memory and scrupulous use of
checklists that some gremlin inevitably sneaks into the cockpit and
turns the master on, while I'm out enjoying myself at a distant
airfield. If this happens at home field its less of an issue, but when
it happens away, =-O . Anyone done this, or have some suggestions?
Deems Davis
N519PJ
Bill Mauledriver Watson wrote:
> <MauleDriver@nc.rr.com>
>
> I have a 2 battery Z-14 system in an RV10. Rather than have a full
> ground power capability, I'm planning to have some sort of plugs
> available through the baggage compartment that would allow me to hook
> up a smart charger occassionally.
>
> Has anyone come up with a good set of plugs for this application? A
> good approach to hooking up 2 batteries - either 1 at a time or both?
>
>
Message 8
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Subject: | Re: Connecting a battery charger to a 2 battery system |
I've got a 3 pin XLR jack mounted in a lightening hole in the rear seat brace.
Very easy to access from the baggage door. It's wired with 1 pin to ground and
1 to each battery through a fuse. I only use it for trickle charging.
Bob
RV-10 N442PM
jack: http://www.radioshack.com/product/index.jsp?productId=2103444
plug: http://www.radioshack.com/product/index.jsp?productId=2104076
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=243707#243707
Message 9
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Subject: | Modifying the Piper plug |
Bob,
In one of your links you posted here, there is a diagram for modifying the plug.
It has several numerical references on the various steps and parts, but I can't
find the text or reference guide to those numerical references.
Could you please link or post?
Thanks for being such a valuable resource.
--------
Myron Nelson
Mesa, AZ
Emp completed, legacy build fuse in progress
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=243753#243753
Message 10
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Subject: | Re: Ground Power Receptacle? |
i used to own a piper and also worked for a moving company. soooooooooooooo
i know the plug from piper and for a semi trailer are the same. but a
trailer shop can probably supply it for 1/3 the cost. this if an aux.
supply, not the trailer lights.
bob noffs
On Tue, May 12, 2009 at 7:50 AM, Ian <ixb@videotron.ca> wrote:
>
> Thanks. Of course my main effort here is to fix the reason for my lack
> of charging, which you would have seen in another post.
>
> I like "B" since it can serve both purposes, and RV's are a bit
> inaccessible when buttoned up. I do actually have "A" already. I have
> a little trickle charger/conditioner that came with a connector that is
> mounted permanently and accessible through my engine oil check hatch.
>
> Bob Nuckolls suggested that the Piper connector is relatively common -
> there are LOTS of Piper aircraft around so I'll probably go with the
> significantly less expensive Piper connectors, and make sure to put some
> good "12V ONLY" labeling next to the connector.
>
> Thanks to all who responded.
>
> On Mon, 2009-05-11 at 20:53 -0400, bakerocb@cox.net wrote:
> >
> > 5/11/2009
> >
> > Hello Ian, You wrote:
> >
> > 1) "Having spent the last couple of weeks needing to repeatedly recharge
> my
> > RV-9A battery,........"
> >
> > What is abnormal about either your system or your mode of operation that
> > causes this repeat problem? If there is a fundamental fault in either of
> > those two areas maybe a fault correction approach rather than an external
> > charging receptacle band-aid should be considered.
> >
> > 2) "......I can say that an external charging receptacle would have made
> my
> > life a lot easier."
> >
> > Realize that external charging receptacles can come in two different
> > flavors:
> >
> > A) A simple low amperage connection system going directly to the battery
> > that is suitable for connecting a 120 volt input, low amperage output
> > battery charger / maintainer for just the purpose of recharging /
> > maintaining the battery.
> >
> > B) A more elaborate high amperage system that would facilitate cranking
> the
> > engine as well as recharging the battery with maybe some additional
> features
> > such as reverse voltage protection.
> >
> > 3) "Can anyone tell me the best receptacle to use, that would be the most
> > standard?"
> >
> > You would have to decide whether you wanted an A or a B solution in order
> to
> > answer the "best" question.
> >
> > If an A solution satisfies your needs then there are dozens of choices --
> it
> > only requires two wires with some simplistic polarity protection. I have
> > operated for several years now with just two wires coming directly from
> my
> > battery up to the cockpit area. One wire is terminated with a female,
> fully
> > insulated, Faston type connector, the other wire is terminated with a
> male,
> > fully insulated, Faston type connector. The wires are just tucked out of
> the
> > way when not in use. See:
> >
> > http://www.terminaltown.com/Pages/Page9.html
> >
> > My battery charger clip ons have been modified with the appropriate stub
> > wires and Faston type connectors added. One benefit of this system is
> that I
> > can connect it up and then attach a volt meter to the charger clips. It
> > tells me what the battery voltage is. Then I can plug in the charger and
> > monitor the charging voltage -- very handy.
> >
> > If only a B solution will satisfy you then look to Bob Nuckoll's
> published
> > material on this subject. The most commonly found receptacle and plug
> > arrangement found at FBO's is the three prong. See here:
> >
> > http://www.aircraftspruce.com/catalog/elpages/extpowerrect.php
> >
> > The next most commonly found is the Piper receptacle and plug
> arrangement.**
> > See here:
> >
> > http://www.aircraftspruce.com/catalog/elpages/piperplugsock.php
> >
> > BUT there is a major "gotcha" that you must be aware of if you have a 12
> > volt aircraft electrical system and you install one of the above
> > receptacles -- some ground power carts with the above plugs will only put
> > out 24 volts. If you zap your 12 volt system with 24 volts you will
> suffer
> > damage.
> >
> > 'OC' Says: "The best investment we can make is the effort to gather and
> > understand knowledge."
> >
> > **PS: There is also a single center post receptacle and plug system
> similar
> > in apprearance to the Piper system, but not compatible, that is found on
> > some Beechcraft airplanes. Very unlikely to find a ground power cart with
> a
> > plug compatible with this odd ball receptacle.
> >
> > ========================================================
> >
> > Time: 12:24:10 PM PST US
> > Subject: AeroElectric-List: Ground Power Receptacle?
> > From: Ian <ixb@videotron.ca>
> >
> >
> > Having spent the last couple of weeks needing to repeatedly recharge my
> > RV-9A battery, I can say that an external charging receptacle would have
> > made my life a lot easier.
> >
> > Can anyone tell me the best receptacle to use, that would be the most
> > standard? Can you also suggest a good source?
> >
> > While not planning to fly away on an almost dead battery, I do envisage
> > moments when it would be useful to start from ground power, and then do
> > some charging direct from the alternator. I'd imagine that flying
> > locally would be fairly safe while the battery is being topped up, as
> > long as your whole panel doesn't shut down if you lose battery.
> >
> > Ian Brown
> > Bromont
> > Quebec
> >
> >
> >
> >
> >
>
>
Message 11
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Subject: | Re: Connecting a battery charger to a 2 battery |
system
bcondrey wrote:
>
> I've got a 3 pin XLR jack mounted in a lightening hole in the rear seat brace.
Very easy to access from the baggage door. It's wired with 1 pin to ground
and 1 to each battery through a fuse. I only use it for trickle charging.
>
> Bob
> RV-10 N442PM
>
> jack: http://www.radioshack.com/product/index.jsp?productId=2103444
> plug: http://www.radioshack.com/product/index.jsp?productId=2104076
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=243707#243707
>
>
>
Bob, that was exactly the kind of thing I was looking for - at the right
price.
I'm thinking that hooking a single smart charger to 2 batteries is a
no-no. A 'dumb' trickle charger perhaps.
In any case, Thanks much!
Bill
Message 12
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Subject: | Re: Connecting a battery charger to a 2 battery system |
Bill,
Just to be clear, I have each battery wired through a fuse to its own pin on the
connector so I can get to either for charging through the connector. I picked
up a couple of Battery Tender Jr.s on sale someplace and have those wired in.
Works great!
Bob
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=243773#243773
Message 13
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|
Subject: | Re: Ground Power Receptacle? |
This is available from just about any auto parts store.
Cole Hersey is the manufacturer.
Socket is 11041. Plug is 11042. Durable, lightweight and inexpensive. I
have one on my beast.
Ben Haas
N801BH
www.haaspowerair.com
---------- Original Message ----------
From: bob noffs <icubob@gmail.com>
Subject: Re: AeroElectric-List: Ground Power Receptacle?
i used to own a piper and also worked for a moving company. sooooooooooo
ooo i know the plug from piper and for a semi trailer are the same. but
a trailer shop can probably supply it for 1/3 the cost. this if an aux.
supply, not the trailer lights. bob noffs
On Tue, May 12, 2009 at 7:50 AM, Ian <ixb@videotron.ca> wrote:
Thanks. Of course my main effort here is to fix the reason for my lack
of charging, which you would have seen in another post.
I like "B" since it can serve both purposes, and RV's are a bit
inaccessible when buttoned up. I do actually have "A" already. I have
a little trickle charger/conditioner that came with a connector that is
mounted permanently and accessible through my engine oil check hatch.
Bob Nuckolls suggested that the Piper connector is relatively common -
there are LOTS of Piper aircraft around so I'll probably go with the
significantly less expensive Piper connectors, and make sure to put some
good "12V ONLY" labeling next to the connector.
Thanks to all who responded.
On Mon, 2009-05-11 at 20:53 -0400, bakerocb@cox.net wrote:
>
> 5/11/2009
>
> Hello Ian, You wrote:
>
> 1) "Having spent the last couple of weeks needing to repeatedly rechar
ge my
> RV-9A battery,........"
>
> What is abnormal about either your system or your mode of operation th
at
> causes this repeat problem? If there is a fundamental fault in either
of
> those two areas maybe a fault correction approach rather than an exter
nal
> charging receptacle band-aid should be considered.
>
> 2) "......I can say that an external charging receptacle would have ma
de my
> life a lot easier."
>
> Realize that external charging receptacles can come in two different
> flavors:
>
> A) A simple low amperage connection system going directly to the batte
ry
> that is suitable for connecting a 120 volt input, low amperage output
> battery charger / maintainer for just the purpose of recharging /
> maintaining the battery.
>
> B) A more elaborate high amperage system that would facilitate crankin
g the
> engine as well as recharging the battery with maybe some additional fe
atures
> such as reverse voltage protection.
>
> 3) "Can anyone tell me the best receptacle to use, that would be the m
ost
> standard?"
>
> You would have to decide whether you wanted an A or a B solution in or
der to
> answer the "best" question.
>
> If an A solution satisfies your needs then there are dozens of choices
-- it
> only requires two wires with some simplistic polarity protection. I ha
ve
> operated for several years now with just two wires coming directly fro
m my
> battery up to the cockpit area. One wire is terminated with a female,
fully
> insulated, Faston type connector, the other wire is terminated with a
male,
> fully insulated, Faston type connector. The wires are just tucked out
of the
> way when not in use. See:
>
> http://www.terminaltown.com/Pages/Page9.html
>
> My battery charger clip ons have been modified with the appropriate st
ub
> wires and Faston type connectors added. One benefit of this system is
that I
> can connect it up and then attach a volt meter to the charger clips. I
t
> tells me what the battery voltage is. Then I can plug in the charger a
nd
> monitor the charging voltage -- very handy.
>
> If only a B solution will satisfy you then look to Bob Nuckoll's publi
shed
> material on this subject. The most commonly found receptacle and plug
> arrangement found at FBO's is the three prong. See here:
>
> http://www.aircraftspruce.com/catalog/elpages/extpowerrect.php
>
> The next most commonly found is the Piper receptacle and plug arrangem
ent.**
> See here:
>
> http://www.aircraftspruce.com/catalog/elpages/piperplugsock.php
>
> BUT there is a major "gotcha" that you must be aware of if you have a
12
> volt aircraft electrical system and you install one of the above
> receptacles -- some ground power carts with the above plugs will only
put
> out 24 volts. If you zap your 12 volt system with 24 volts you will su
ffer
> damage.
>
> 'OC' Says: "The best investment we can make is the effort to gather an
d
> understand knowledge."
>
> **PS: There is also a single center post receptacle and plug system si
milar
> in apprearance to the Piper system, but not compatible, that is found
on
> some Beechcraft airplanes. Very unlikely to find a ground power cart w
ith a
> plug compatible with this odd ball receptacle.
>
> ======
>
> Time: 12:24:10 PM PST US
> Subject: AeroElectric-List: Ground Power Receptacle?
> From: Ian <ixb@videotron.ca>
>
>
> Having spent the last couple of weeks needing to repeatedly recharge m
y
> RV-9A battery, I can say that an external charging receptacle would ha
ve
> made my life a lot easier.
>
> Can anyone tell me the best receptacle to use, that would be the most
> standard? Can you also suggest a good source?
>
> While not planning to fly away on an almost dead battery, I do envisag
e
> moments when it would be useful to start from ground power, and then d
o
> some charging direct from the alternator. I'd imagine that flying
> locally would be fairly safe while the battery is being topped up, as
> long as your whole panel doesn't shut down if you lose battery.
>
> Ian Brown
> Bromont
> Quebec
>
>
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Subject: | Re: Connecting a battery charger to a 2 battery |
system
Yep, I get it. Thanks
do not archive
bcondrey wrote:
>
> Bill,
>
> Just to be clear, I have each battery wired through a fuse to its own pin on
the connector so I can get to either for charging through the connector. I picked
up a couple of Battery Tender Jr.s on sale someplace and have those wired
in.
>
> Works great!
>
> Bob
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=243773#243773
>
>
>
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Subject: | 28V Contactors and Crowbar |
Bob:
Thanks for letting me know you have the 28V crowbar. What about a 28V contactor?
All I see are 12V at B&C.
Thanks,
Craig
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=243806#243806
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