Results 1 to 10 of 46
Thread: installing a second battery
-
11-07-2012, 09:16 AM #1
installing a second battery
ok, I plan on doing this possibly this weekend. I have done a seach on here but I really need it "dumbed down". Does anyone have a really simple diagram they could share?
Casey'08 Mobius LS. Sold
'18 Craz "TypeO"
REV10's, Revo6 xss, Kicker10, Kicker 12 CompR, various LED's
-
11-07-2012, 09:31 AM #2Malo <--- Means--Evil or Mean One. This explains a lot.
2013 Mojo 2.5 Skylon Tower. Bestia < Beast >
[COLOR="#696969"]
-
11-07-2012, 09:50 AM #3
Perko switch... sorry, I thought that was a given.
'08 Mobius LS. Sold
'18 Craz "TypeO"
REV10's, Revo6 xss, Kicker10, Kicker 12 CompR, various LED's
-
11-07-2012, 09:53 AM #4Senior Member
- Join Date
- Jun 2010
- Location
- Lake Houston
- Posts
- 656
There's an absolutely amazing drawing in the owners manual. I'll see if I can find it electronically.
2013 LSV
2005 LSV - SOLD
-
11-07-2012, 09:59 AM #5Senior Member
- Join Date
- Jun 2010
- Location
- Lake Houston
- Posts
- 656
Page 63......
There's an even better drawing in the 2013 manual
http://www.google.com/url?sa=t&sourc...G_ESCYRNpXYY6A2013 LSV
2005 LSV - SOLD
-
11-07-2012, 10:01 AM #6
In my opinion, this is the best way to do it:
http://www.mastercraft.com/teamtalk/...ead.php?t=3557
This is how I've done mine and it works great. It costs you about the same amount of money on the Perko, but it's automatic. So you never have to mess with setting "1" "2" or "OFF" manually.
This is the relay that you would want:
http://www.amazon.com/BorgWarner-R30...g+warner+relay
Although you can probably find it cheaper at O'Reilly's or similar place. It was easy to hook up; just follow the drawing in that thread.Last edited by dhyams; 11-07-2012 at 10:05 AM.
===================================
2005 Moomba Mobius LSV
-
11-07-2012, 10:15 AM #7
Hmmm... does the same wiring apply if their is a switch, not a relay?
'08 Mobius LS. Sold
'18 Craz "TypeO"
REV10's, Revo6 xss, Kicker10, Kicker 12 CompR, various LED's
-
11-07-2012, 10:19 AM #8
Yes. The only thing that I can think of that would be different is that you do need to run a wire (say a 16 gauge) from the ACC on your ignition (the purple wire) to the relay, so that it will automatically engage the relay when you turn the key.
Basically a relay *is* a switch, it's just controlled by another electrical signal (in this case, the ACC terminal on your key), instead of you having to reach in the battery compartment to do it yourself. Convenient.
And here's a cheaper place to buy the relay:
http://shop.advanceautoparts.com/web...ntent=10711125===================================
2005 Moomba Mobius LSV
-
11-07-2012, 10:31 AM #9
And just to clarify what the relay is doing, it is this:
1) it is in the "open" state while your key is in the off position. This means you can run your stereo and whatever else you have hooked up to battery #2, while preserving the charge of battery #1. In "Perko" language, the switch is set to "2".
2) it is in the "closed" state while your key is in the ACC or crank position. This means that whenever you turn your key to crank the boat, both batteries are acting as one big battery. In "Perko" language, the switch is set to "1 and 2".
Has worked great for me. The only negative possibility is that it is theoretically possible to run down batt #2 so far that when the relay closes, there is a significant draw from batt #1 wanting to charge it that you can't crank. Reading the thread mentioned above, I came to the conclusion that the original poster has physically tested this and it doesn't seem to happen. Even in the case that it *does* happen, all it takes is a simple disconnection of the positive end of batt #2 to the relay, and then you are operating only with batt #1 which should be fresh. Trivial to do in the event that this occurs.===================================
2005 Moomba Mobius LSV
-
11-07-2012, 11:53 AM #10Senior Member
- Join Date
- Aug 2011
- Posts
- 2,522
Return the perko and get a battery isolator, no messing with switches...
http://bluewatermarinesvc.com/html/bat_isolator.htmlhttp://www.instgram.com/jlyons30
2002 Moomba Mobius LSV - Sold
2006 Moomba Mobius LSV - Sold
2017 Moomba Craz - Enzos, Lead