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Help with Dual Battery Install

lak2004 said:
Im surprised nobody posted up these guys yet: http://www.hellroaring.com/index.php

Seems like the best way to me. But what do i know.
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You should read that ACR link... Not to bash the hellroaring stuff, lot of guys have gotten outstanding service from them... But it is a diode technology. If it fails, you'll kill a battery as it is downstream of the batteries... Not to mention inherent voltage loss from such systems..

The Battery Mate does the exact same thing, but is transistor tech. So no voltage loss and better durability... Personally I like the ACR tech better.. And it runs about the same price as the Hellroaring kit...

Times a change... :wink1:
 
Big Blzn said:
Man ryoken, thanks for all the knowledge. I'll start this little battery venture in about 8-10 weeks. Thanks again fellas.
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Anytime man! :D
 
little high jack
everyone says that your batteries need to be similar, but if I install an aux. battery with a solinoid to disconnect it just for winching would it have to be the same? Also what is the best way to keep it charged since it will not be engaged all the time, just run a hot wire from the alt.? also will this hurt my alt. or my other battery(Yellow Optima), also I plan on using a regular 650cca starting battery for aux.
 
Missed this...

It's not quite as simple as "using a solenoid to DISCONNECT"

solenoids don't work that way, they combine...

The easy way to do that would be just run a marine switch in the cab.. run your main on 1, aux on 2, and just leave it on 1 till you need the aux. then switch it, be aware tho, you'll need a switch with a field disconnect to do that so you wont fry the alternator...

also, yellows are deep cycle right? I'd run that as the aux, and the cranking as a main... unless your rarely gonna use the aux and just for an emergency... the cranking battery wont hold up to a winch nearly as well as the deep cycle...

also you can't just feed the alternator to both bats.. you'll be feeding back and forth thru that wire.. effectively running in parallel anyway... with the marine switch you can just run the alternator wire to the common feed and it'll charge whichever bank its on, 1 or 2 or both...
 
why not just run rhyokens wiring and use 2 deep cycle batteries so you have mega winch power and excellent battery life ?
my experience is that if a regular starting battery sits for long periods with only slight use they die not completely but they never seem to have any reserve capacity at high draws eg winching or multiple starts
 
You just reminded me of something I didn't say in my post....

It seems to me to be counter-productive to design the system around just having "another battery laying around that you want to use"

Seems smarter to nut up and save for another yellow top, and run a nice, flexible system, than build one that is limited...
 
ryoken..... I'll probably end up sending you a pm or I need to find your thread on dual batt's but I'm interested in what you said earlier about 1 wire to the starter and getting the rest of the stuff out from under there.
 
Yeah, I've become quite versed in continuous duty solenoids over the last few months... :haha:

Gimme a shout whenever... I've got a line on nice 200 amp ones for a good price...

It's definitely a nice mod when you put a quality part in... simple too...
 
damn sorry about spelling your name wrong hope this doesnt mean you think i am functionally retarded although if you think i am careless go ahead feel free
 
ryoken said:
here's one way to do it...

dual_batteries.jpg
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This is a very good thread for dual batts, these opinions will strongly be considered for my application.

PLEASE correct me if I am wrong, look closely at bat #2 I believe the polarity is backwards. If this shcematic were to be used, when the solonoid energizes 24V would go straight to ground, thus shorting out, burning up the wire, or blowing up a battery. The positive and negative terminals need to be swapped.
 
hmmm, yeah, look at that.. guy musta labeled the battery wrong... people, take note... good eye, never noticed it...
 
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