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Old 09-12-2016, 03:19 PM   #1
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Battery disconnect ideas

I would like to install a battery disconnect on my 2017 27 ft White Hawk. Any ideas out there?
Also, any ideas on the best way secure my battery from being stolen? Thanks.
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Old 09-12-2016, 06:27 PM   #2
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I like the four position BLUE SEA HD Battery switches... OFF-BANK1-BOTH-BANK2 then back to OFF again...

This allows me to select ONE or BOTH my battery banks or totally disconnect...

There is no sure way to keep batteries from being stolen. All you can do is slow them the down the best you can and maybe they will go for the easier neighbors batteries...

I have motion detection lights that come on when someone comes up around either side of my trailer...

Gotta love the metal battery boxes with rotary latch key lock built-in type locks. Padlock and hasps are way to easy to cut off.

Roy Ken
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Old 09-12-2016, 07:38 PM   #3
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Currently using wingnuts on the negative terminals of both batteries connected in parallel. Fairly easy and certainly cheap.
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Old 09-12-2016, 08:03 PM   #4
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I know that this will sound to simple for anyone to take seriously but I installed a simple 30 amp toggle switch (on/off) on the side of the junction box attached to the frame. The ground wire from the coach (white wire) to one side of the switch and the other side of the switch has the ground wire (white wire) going to the battery. The switch acts the same as removing the ground wire from the battery. 30 amp is more then adequate since the highest rated fuse in my 27DSRL is 20 amp for the slide motor. Those large red battery isolating switches, that people like to use, are rated to handle up to 500 amps for the automotive starter draw.
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Old 09-13-2016, 07:48 AM   #5
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Quote:
Originally Posted by rgchak View Post
I know that this will sound to simple for anyone to take seriously but I installed a simple 30 amp toggle switch (on/off) on the side of the junction box attached to the frame. The ground wire from the coach (white wire) to one side of the switch and the other side of the switch has the ground wire (white wire) going to the battery. The switch acts the same as removing the ground wire from the battery. 30 amp is more then adequate since the highest rated fuse in my 27DSRL is 20 amp for the slide motor. Those large red battery isolating switches, that people like to use, are rated to handle up to 500 amps for the automotive starter draw.
One of the major issues with toggle switches is that they are not designed for the arching that takes place while connecting and disconnecting from the battery. This is why those main low voltage switches are designed to handle the high amperage. They have a different contact material that keeps the contacts from deteriorating with use. A lot of people look at the toggle switch and it's rating is for 20 or 30 amps, but the rating is for 110VAC ratings and not DC ratings.

For RV battery disconnects, I would recommend that you purchase switches designed specifically to handle the possibility of a high amperage disconnect. They will last a lot longer than a regular toggle switch and eliminate the possibility of disintegrating should a higher load go across the contacts.

Don
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Old 09-13-2016, 07:56 AM   #6
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I installed this one - Marinco 701 Battery Disconnect Switch https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
"Key" is removable. I have only one battery but so far so good. These are common on boats and should be on TTs.
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Old 09-13-2016, 08:05 AM   #7
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Check my mods link for my Blue Sea Mini install on the battery box.

Working great so far!!!
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Old 09-13-2016, 08:19 AM   #8
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And never have your emergency brake disconnect switch disconnected from the battery during travel.
Its "illegal".
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Old 09-13-2016, 08:31 AM   #9
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And never have your emergency brake disconnect switch disconnected from the battery during travel.
Its "illegal".
Add to that it is DANGERIOUS!!!

Don
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Old 09-13-2016, 08:47 PM   #10
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Originally Posted by M&A View Post
I installed this one - Marinco 701 Battery Disconnect Switch https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
"Key" is removable. I have only one battery but so far so good. These are common on boats and should be on TTs.
Where did you mount that switch? I've been trying to decide where to put mine. Does it need to be protected from the weather? I was originally thinking of mounting it to the frame but decided that might not be the best way to do it -- maybe mount to the side of the battery box?

Mitch
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