Battery kill switch/Battery selector Switch

kmh1596

Wilbraham, MA
Aug 20, 2007
5,362
Western MA
Hello all,
I'm going to be putting a second battery on the Starcraft, but being that they are not the same battery, I wanted to put them on with a selector switch to choose <i>either</i> battery, or <i>both batteries</i>, or of course <b>OFF</b>. This way if and when I run out of battery, I can just switch over to the other, which I will be sure to keep charged, and if I by any chance get 2 new batteries identical to eachother, I could run them together.

I have the molded ABS cover up front, so I can't just go up front and switch the battery manually, the reason why the switch would be a great thing to add on.
Thanks in advance for the input. <img src=../Images/icons/icon_smile.gif border=0 align=middle alt="Smile">

*Kevin*
<img src=../Images/icons/icon_smile_pu.gif border=0 align=middle alt="PopUp"> 2001 Starcraft Constellation Gemini <img src=../Images/icons/icon_smile_suv.gif border=0 align=middle alt="Tow Vehicle"> 96 Cherokee 2dr 5spd,
Booked '09: 54 <img src=../Images/icons/icon_smile_tongue.gif border=0 align=middle alt="Tongue">

Edited by - kmh1596 on March 16 2009 10:11:26
 

Raycfe

Waterford Ct.
Oct 3, 2007
18,124
Waterford, Ct
First off remember that you will only need a 30 or 40 amp switch tops. The batteries will never have a "starting an engine cycle". That said you could mount a switch or switches anywhere before they attach to the camper or tow vehicle. I have seen a marine battery selector switch used on a trailer with big battery cables for what? 40-amps? Way to much overkill. I just use a rocker switch inside, work great.

83 JaycoJay 806
04 Grand Cherokee
 

Ray Arnold

Let's do this thing !
Sep 13, 2008
26
Mesa,AZ
kevin, You might want to try 2 relay/contactors near the batterys and a 3 way switch anywhere inside the popup, a little pricey but an effcent way of doing it. They sell them here>
http://www.wiringproducts.com/index1.html

Ray&Karen Utah,Bo,and Mister.
2008 Fleetwood Avalon
2001 chevy silvarado 8.1 is history
Now its a 2007 Chevy Tahoe
 

Storm Trooper

Home is where you park it!
Feb 14, 2008
3,544
Where my camper is parked now.
Kevin,

If you do it Ray's way, then you can put a digital voltmeter inside the pup next to the switch to monitor the current battery voltage.


Lou

Lou & Jan and k9 Kyleigh Wyote (fuzz ball)
32 days booked 09,<img src=../Images/icons/icon_smile_camping.gif border=0 align=middle alt="Camping">49 nights camped 08
07 Fleetwood Avalon (Great White) 03 Ford Expedition (Green Monstah)
 

kmh1596

Wilbraham, MA
Aug 20, 2007
5,362
Western MA
Ray, I had sent Xolthrax a seperate email asking his thoughts, as he's an electronics guru. He mentioned the idea of using 2 50A toggle switches (sold at Wal-Mart) on the + side of each battery and then put the negatives of the batteries together. That way when you want BOTH batteries in use, you have both toggles on. When you want 1 battery in use, one toggle on, one toggle off.

While the 2 relays and toggles may be efficient, it isn't in the budget as of now. <img src=../Images/icons/icon_smile_blackeye.gif border=0 align=middle alt="Black Eye">
Not sure what the "contactors" are, but the relays looked to be about $30 each, then whatever the switches would run.
I'll be putting in the voltmeter inside, and can take signal from the porch light, right inside the same cabinet. I'm going to tinker around tomorrow and see how I can fit everything on the tongue, or if I'll be losing a propane tank! <img src=../Images/icons/icon_smile_blackeye.gif border=0 align=middle alt="Black Eye">

*Kevin*
<img src=../Images/icons/icon_smile_pu.gif border=0 align=middle alt="PopUp"> 2001 Starcraft Constellation Gemini <img src=../Images/icons/icon_smile_suv.gif border=0 align=middle alt="Tow Vehicle"> 96 Cherokee 2dr 5spd,
Booked '09: 54 <img src=../Images/icons/icon_smile_tongue.gif border=0 align=middle alt="Tongue">
 

Xolthrax

Franconia, Pa.
Kevin, I have some ideas for voltmeters, too. Wait until you see the one I have for you at French Creek. It would be really easy to connect, and they're cheap. I'm thinking of adding one for each battery.


Joe

<img src=../Images/icons/icon_smile_pu.gif border=0 align=middle alt="PopUp">'96 Rockwood Signature Series 1280
<img src=../Images/icons/icon_smile_suv.gif border=0 align=middle alt="Tow Vehicle">'07 Ford Explorer
<i>Wherever you go, there you are.</i>
 




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